Παρασκευή 30 Νοεμβρίου 2018

IJERPH, Vol. 15, Pages 2709: Perceptions of Healthcare-Associated Infection and Antibiotic Resistance among Physicians Treating Syrian Patients with War-Related Injuries

IJERPH, Vol. 15, Pages 2709: Perceptions of Healthcare-Associated Infection and Antibiotic Resistance among Physicians Treating Syrian Patients with War-Related Injuries

International Journal of Environmental Research and Public Health doi: 10.3390/ijerph15122709

Authors: Andreas Älgå Karin Karlow Herzog Murad Alrawashdeh Sidney Wong Hamidreza Khankeh Cecilia Stålsby Lundborg

Healthcare-associated infections (HAIs) constitute a major contributor to morbidity and mortality worldwide, with a greater burden on low- and middle-income countries. War-related injuries generally lead to large tissue defects, with a high risk of infection. The aim of this study was to explore how physicians in a middle-income country in an emergency setting perceive HAI and antibiotic resistance (ABR). Ten physicians at a Jordanian hospital supported by Médecins Sans Frontières were interviewed face-to-face. The recorded interviews were transcribed verbatim and analyzed by qualitative content analysis with an inductive and deductive approach. The participants acknowledged risk factors of HAI and ABR development, such as patient behavior, high numbers of injured patients, limited space, and non-compliance with hygiene protocols, but did not express a sense of urgency or any course of action. Overuse and misuse of antibiotics were reported as main contributors to ABR development, but participants expressed no direct interrelationship between ABR and HAI. We conclude that due to high patient load and limited resources, physicians do not see HAI as a problem they can prioritize. The knowledge gained by this study could provide insights for the allocation of resources and development of hygiene and wound treatment protocols in resource-limited settings.



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IJERPH, Vol. 15, Pages 2708: Reply to “Comment on Iavicoli et al. Ethics and Occupational Health in the Contemporary World of Work. Int. J. Environ. Res. Public Health 2018, 15, 1713”

IJERPH, Vol. 15, Pages 2708: Reply to “Comment on Iavicoli et al. Ethics and Occupational Health in the Contemporary World of Work. Int. J. Environ. Res. Public Health 2018, 15, 1713”

International Journal of Environmental Research and Public Health doi: 10.3390/ijerph15122708

Authors: Sergio Iavicoli Antonio Valenti Diana Gagliardi Jorma Rantanen

The authors would like to extend their thanks for the fruitful comments and suggestions, which are useful for conducting deeper analyses of the ethical concerns related to occupational health. [...]



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IJERPH, Vol. 15, Pages 2707: Legionella Colonization of Hotel Water Systems in Touristic Places of Greece: Association with System Characteristics and Physicochemical Parameters

IJERPH, Vol. 15, Pages 2707: Legionella Colonization of Hotel Water Systems in Touristic Places of Greece: Association with System Characteristics and Physicochemical Parameters

International Journal of Environmental Research and Public Health doi: 10.3390/ijerph15122707

Authors: Maria A. Kyritsi Varvara A. Mouchtouri Antonis Katsioulis Elina Kostara Vasileios Nakoulas Marina Hatzinikou Christos Hadjichristodoulou

This study aimed to assess the colonization of hotel water systems in central Greece and Corfu by Legionella, and to investigate the association between physicochemical parameters and Legionella colonization. Standardized hygiene inspection was conducted in 51 hotels, and 556 water samples were analyzed for Legionella spp. Free chlorine concentration, pH, hardness, conductivity, and trace metals were defined in cold water samples. The results of inspections and chemical analyses were associated with the microbiological results using univariate and logistic regression analysis. According to the score of the checklist used for the inspections, 17.6% of the hotels were classified as satisfactory, 15.7% as adequate, and 66.7% as unsatisfactory. Moreover, 74.5% of the hotels were colonized by Legionella spp. and 31.4% required remedial measures according to the European guidelines. Legionella spp. were isolated in 28% of the samples. Unsatisfactory results of inspections were associated with Legionella presence (relative risk (RR) = 7.67, p-value = 0.043). In hot-water systems, <50 °C temperatures increased the risk of Legionella colonization (RR = 5.36, p-value < 0.001). In cold-water systems, free chlorine concentration <0.375 mg/L (odds ratio (OR) = 9.76, p-value = 0.001), pH ≥ 7.45 (OR = 4.05, p-value = 0.007), and hardness ≥321 mgCaCO3/L (OR = 5.63, p-value = 0.003) increased the risk, whereas copper pipes demonstrated a protective role (OR = 0.29, p-value = 0.0024). The majority of the hotels inspected were colonized with Legionella. Supplementary monitoring of the risk factors that were identified should be considered.



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IJERPH, Vol. 15, Pages 2706: Responding to Climate and Environmental Change Impacts on Human Health via Integrated Surveillance in the Circumpolar North: A Systematic Realist Review

IJERPH, Vol. 15, Pages 2706: Responding to Climate and Environmental Change Impacts on Human Health via Integrated Surveillance in the Circumpolar North: A Systematic Realist Review

International Journal of Environmental Research and Public Health doi: 10.3390/ijerph15122706

Authors: Alexandra Sawatzky Ashlee Cunsolo Andria Jones-Bitton Jacqueline Middleton Sherilee L. Harper

Environments are shifting rapidly in the Circumpolar Arctic and Subarctic regions as a result of climate change and other external stressors, and this has a substantial impact on the health of northern populations. Thus, there is a need for integrated surveillance systems designed to monitor the impacts of climate change on human health outcomes as part of broader adaptation strategies in these regions. This review aimed to identify, describe, and synthesize literature on integrated surveillance systems in Circumpolar Arctic and Subarctic regions, that are used for research or practice. Following a systematic realist review approach, relevant articles were identified using search strings developed for MEDLINE® and Web of Science™ databases, and screened by two independent reviewers. Articles that met the inclusion criteria were retained for descriptive quantitative analysis, as well as thematic qualitative analysis, using a realist lens. Of the 3431 articles retrieved in the database searches, 85 met the inclusion criteria and were analyzed. Thematic analysis identified components of integrated surveillance systems that were categorized into three main groups: structural, processual, and relational components. These components were linked to surveillance attributes and activities that supported the operations and management of integrated surveillance. This review advances understandings of the distinct contributions of integrated surveillance systems and data to discerning the nature of changes in climate and environmental conditions that affect population health outcomes and determinants in the Circumpolar North. Findings from this review can be used to inform the planning, design, and evaluation of integrated surveillance systems that support evidence-based public health research and practice in the context of increasing climate change and the need for adaptation.



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What is a psychosocial work environment?

The term “psychosocial work environment” appears frequently in research articles, including those published in the Scandinavian Journal of Work, Environment and Health (1‒8). Recently, the first international handbook on the emerging field of “psychosocial epidemiology” extensively addressed the contribution of psychosocial working conditions to health and illness (9). There is, however, also a controversial debate pertaining to the meaning of the word “psychosocial“ and whether it might enhance a focus on psychological phenomena and draw attention away from the work environment (10). Such concerns recently motivated the Swedish Work Environment Authority to remove the term psychosocial work environment when they published their new provision on the organizational and social work environment: ”A common term used for this work environment is psychosocial. This is a broad concept that basically refers to how the individual experiences and responds to his or her surroundings and thus the individual becomes the focus. Instead, we have chosen to highlight the organizational and social conditions and requirements at work because that is what the employer can control.” (11, p12). (Translated from Swedish by the author.) In the following, I provide some comments on this debate. I will first address the historical use of the term psychosocial work environment and then present a conceptual framework showing the relation of the psychosocial work environment to phenomena on both the societal and individual level. Historical use of the term "psychosocial work environment" To my knowledge, the first English-language research article using “psychosocial work environment” in the title was published in 1982. It was on “Myocardial infarction risk and psychosocial work environment: an analysis of the male Swedish working force”, authored by the two Swedish researchers Lars Alfredsson and Töres Theorell and the US-American researcher Robert Karasek (12). Also in the following years, the term was mainly used in articles by Swedish/US author groups. In 1991, 21 researchers, again most of them from Sweden and the US, contributed to the book The Psychosocial Work Environment: Work Organization, Democratization and Health (13). The book was published in memory of Bertil Gardell, who held the first chair of work and organizational psychology at the Department of Psychology at the University of Stockholm from 1976 until his early death in 1987 (14). Since the 1960s, Gardell had published on topics such alienation, monotonous and deskilling work, influence and autonomy, and many articles in the book were dedicated to these factors (13). This line of research led, among other things, to the development of the demand‒control (job strain) model that dominated psychosocial work environment research in the 1980s and 1990s (15). In the 1990s and early 2000s, psychosocial work environment research increasingly included new concepts, such as balance between efforts and rewards (16), organizational justice (17), workplace social capital (18) and workplace bullying (19). One could say that psychosocial work environment research became more “psychological”, in the sense that research became increasingly focused on whether or not workers feel treated fairly and respected and on the emotional effects of work tasks, procedures, or behaviors by supervisors, colleagues, clients and customers. In the Encyclopaedia of Occupational Health and Safety, published in 1998 by the International Labor Office (ILO) (20), the chapter on “Psychosocial and Organizational Factors” illustrated this broadened perspective. “These conditions, which are commonly referred to as psychosocial factors, include aspects of the job and work environment such as organizational climate or culture, work roles, interpersonal relationships at work, and the design and content of tasks (eg, variety, meaning, scope, repetitiveness, etc.). The concept of psychosocial factors extends also to the extra-organizational environment (eg, domestic demands) and aspects of the individual (eg, personality and attitudes), which may influence the development of stress at work. Frequently, the expressions work organization or organizational factors are used interchangeably with psychosocial factors in reference to working conditions which may lead to stress.” (20, p34.32). This quote also shows that defining “psychosocial factors” can be challenging. On the one hand, the authors regard psychosocial factors as interchangeable with “work organization”. On the other hand, they point out that psychosocial factors also extend to “aspects of the individual” such as “personality and attitudes”. The use of the same term for very different phenomena such as work organization and personality and attitudes is problematic in the ILO definition, and it is unclear how work organization and individual aspects are thought to be related to each other. A conceptual framework for research on psychosocial work environment and health Figure 1 shows a conceptual framework for research on psychosocial work environment and health depicting the relation of the psychosocial work environment to phenomena both on the societal and individual level. I adapted and modified the framework from two previous publications: an editorial on "Psychosocial determinants of health in social epidemiology" by Martikainen et al (21) and a book chapter on "Epidemiology of health and illness: A ­socio-psycho-physiological perspective" by Rugulies et al (22). Similar frameworks have been published elsewhere (23‒25). The steps in the causal pathway are denoted with roman numerals to which I will refer frequently. The pathway starts with (i) (macro-level) economic, social and political structures, such as the modes of production, division of labor, type of social welfare regime or the legal system and (ii) (meso-level) workplace structures, such as type of employment contract or adequacy of staffing that (iii) impact the meso-level psychosocial working conditions, such as job demands, work organization, content of work or social relations at work. These psychosocial working conditions are experienced by (iv) the individual, or group of individuals, and elicit cognitive and emotional processes. Through these processes the psychosocial working conditions subsequently evoke (v) psycho-physiological changes and (vi) health-related behaviors that (vii) affect risk of somatic diseases and mental disorders. A challenge for psychosocial work environment research is the step from (iii) to (iv), where the working conditions “get under the skin” of the workers and are assumed to alter the workers’ cognitions, emotions, behavior and physiology ‒ a process that has also been termed as “embodiment” (26). This is a two-way process, in which not only the working conditions alter the mind and the body of the workers, but where the workers’ cognitions and emotions also alter the way the workers experience working conditions (27). This raises the question to what extent the working conditions in the environment (iii) differ from the experienced working conditions by the individual (iv), a question that is in particular crucial for research that aims to ascertain psychosocial working conditions as exposures in the environment but for practical reasons measures these conditions by self-report from the individual (28, 29). A related question is the extent to which experiencing working conditions requires a conscious process, or if certain working conditions could be embodied while bypassing the consciousness of the individual (30). The conceptual framework depicted in figure 1 may be useful for placing studies from different academic disciplines into a bigger picture of psychosocial work environment research, emphasizing the transdisciplinary nature of this type of research. Work environment research that is denoted as “psychosocial” is often focused on how psychosocial working conditions (iii), such as job demands, work organization, job content or social relations at work (1) are affecting psycho-physiological changes (v) (eg, stress axis activation) (31), health-related behaviors (vi) (eg, smoking or leisure time physical activity) (32, 33) or risk of diseases and disorders (vii), such as cardiovascular disease (34, 35), diabetes (36, 37), musculoskeletal disorders (38) or depression (39-41). In addition to this, the framework in figure 1 suggests that psychosocial work environment research may also include research on the historical origins of contemporary societal structures (i) (42-44) and on the impact of macro-level phenomena (i) (eg, the global financial crisis of 2007) on workers’ health (vii) (45) and how this impact may be explained by changes in workplace structures (ii), for example by staff reductions, or by deteriorating working conditions and reduced job security (iii) (46, 47). Psychosocial work environment research may further include psychobiological research that focuses on how the cognitive and emotional processing of the individual (iv) evoke psycho-physiological changes (v) (48). The framework in figure 1 shows a uni-directional process. Although reversed associations are possible, for example that health and illness (vii) may affect individuals’ health-related behaviors (vi) or cognitive and emotional processes (iv), such bi-directional associations are intentionally not depicted to emphasize the main direction in the chain of causation from the macro-level to the meso-level to the individual-level. One exception though has been made, indicated by the dashed arrows originating from “individual-level experience and cognitive and emotional processes” and pointing to “workplace structures” and “psychosocial working conditions”. These arrows are shown to acknowledge workers’ individual and collective efforts to change workplace structures and working conditions. One example is the struggle of labor unions worldwide for the eight-hour work day in the 19th and early 20th centuries (49). Another example is what has been termed as “job crafting”, that is the behaviors of workers to reduce barriers and enhance resources at work (50). To summarize, I suggest to regard the psychosocial work environment as an intermediate step in a causal pathway linking economic, social and political structures with health and illness through psychological and psycho-physiological processes. Because of the intermediary position of the psychosocial work environment, psychosocial work environment research is not limited to “how the individual experiences and responds to his or her surroundings” (11, p12), but includes also research on the macro- and meso-level structures that determine and shape the psychosocial work environment. The psychosocial work environment is therefore a key research field for understanding how the interrelation of societal structures, environmental exposures, and psychological and psycho-physiological processes affect health and illness. Acknowledgement Many thanks to my colleagues from the “Psychosocial Work Environment Research Group” at the National Research Centre for the Working Environment, Copenhagen, Denmark, for their inspiring and critical feedback on an internal discussion paper on the meaning of psychosocial work environment circulated in spring 2018. Special thanks to senior researchers Birgit Aust and Ida EH Madsen for comments to the first draft of this editorial. by Rugulies R. doi:10.5271/sjweh.3791

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Effectiveness of psychological and educational interventions for the prevention of depression in the workplace: A systematic review and meta-analysis

Objectives Psychological and educational interventions for the prevention of depression have a small-to-moderate effect. However, little is known about their effectiveness in the workplace. We aimed to evaluate the effectiveness of such interventions through a systematic review and meta-analysis of randomized controlled trials (RCT). Methods We searched PubMed, PsycINFO, EMBASE, CENTRAL, CIS-DOC and Open Grey for RCT. Search was supplemented with manual searches of reference lists of relevant meta-analyses and trials. We included RCT that assessed either the incidence of depression or the reduction of depressive symptoms, which excluded participants with baseline depression. Measurements were required to have been made using validated instruments and participants recruited in the workplace. Independent evaluators selected studies, evaluated risk bias (Cochrane Collaboration’s tool) and extracted from RCT. The combined OR was estimated using the fixed-effects model. Heterogeneity was measured by I2 and Cochrane’s Q. Results Of the 1963 abstracts reviewed, 69 were selected for review in fulltext. Only three RCT met our inclusion criteria, representing 1246 workers from three different countries and continents. The combined odds ratio was 0.25 [95% confidence interval (CI) 0.11–0.60, P=0.002]; I2=0% and Q=0.389 (P=0.823). The risk of bias was low in one RCT and moderate and high in the other two, respectively. Conclusion Psychological or educational interventions may prevent depression in the workplace, although the quality of evidence was low. by Bellón JA, Conejo-Cerón S, Cortés-Abela C, Pena-Andreu JM, García-Rodríguez A, Moreno-Peral P. doi:10.5271/sjweh.3788

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Ammonium zeolite and ammonium phosphate applied as fire retardants for microcrystalline cellulose filled thermoplastic composites

Publication date: Available online 30 November 2018

Source: Fire Safety Journal

Author(s): Ayfer Donmez Cavdar, Sevda Boran, Murat Ertas, Fatih Mengeloglu

ABSTRACT

In this study, mechanical, thermal, fire and morphological properties of thermoplastic composites filled with fire retardants (FRs) and microcrystalline cellulose (MCC) were investigated in detail. The composites were produced through the extrusion + injection molding methods using MCC, FRs and high density polyethylene (HDPE). Based on the composites dry-weights, 10%wt. of mono ammonium phosphate (MAP), ammonium zeolite (AZ) or natural zeolite (NZ) were incorporated into polymer matrix for improving reaction of fire of the composites, and their effects on technological properties were evaluated. MAP had a positive effect on tensile and flexural moduli of the composites whilst tensile strength, elongation at break and impact strength properties of the composites were decreased. The highest tensile and flexural strength values were obtained from HDPE/MCC/AZ samples, respectively, 22.13 MPa and 29.93 MPa. The minimum value for impact strength was obtained from HDPE/MCC/MAP5/AZ5 composite (1.68kJ/m2) whereas the maximum value for impact strengths were achieved from control HDPE composite (5.15 kJ/m2) and HDPE/MAP10 (3.30 kJ/m2). Flexural strength and flexural modulus values of all HDPE composites were higher than the requirement by the ASTM D 6662 standard for polyolefin based plastic lumber decking boards. As the MCC content increased, the initial, maximum and final degradation temperatures of HDPE composites have not been influenced greatly. Thermogravimetric and differential scanning calorimetry analyses showed that the maximum rate weight loss temperature and the crystalline features of HDPE have not been significantly influenced by addition of MCC. Limiting Oxygen Index (LOI) level and charring increased when FRs were incorporated into polymer matrix. In addition, the burning rates of HDPE/MAP10 and HDPE/MCC/MAP5/AZ5 composite were slowed down by 64% and 62%, respectively. It was found that no burning in HDPE/MCC/MAP10 was observed composite during the horizontal burning test. Especially; HDPE/MCC/MAP samples can be used for building products because they meet the CC1 (plastic materials that have a burning extent of 25 mm or less where tested at a nominal thickness of 1.5 mm, or in the thickness intended for use, in accordance with ASTM D 635) class requirements of international building code which means a model building code improved by the International Code Council. In the light of obtained results, it was specified that use of FRs improved morphological, thermal and reaction of fire of the MCC filled HDPE composites.



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Effect of an opioid management program for Colorado workers’ compensation providers on adherence to treatment guidelines for chronic pain

Objective

The aim of this study was to examine adherence of state guidelines for Colorado workers’ compensation physicians/providers treating individuals as injured workers with chronic pain after initiation of an opioid management program and provider incentives.

Methods

A retrospective cohort of chronic, non‐cancer pain claims was constructed from the Colorado's workers’ compensation database. Adherence to treatment guidelines and opioid prescribing practices were evaluated during implementation of a new billing code to incentivize adherence.

Results

Overall, less than 33% of claims showed evidence of opioid management. Comprehensive opioid management was observed in only 4.4% of claims. In 2010, after implementing the new billing code, the ratio of long acting opioids to short acting opioids decreased from 0.2 to 0.13; returning to 0.2 in one year. Similarly, morphine equivalent doses declined for a short period.

Conclusions

Incentivizing physicians to adhere to chronic pain management guidelines only temporarily improves prescribing practices.



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IJERPH, Vol. 15, Pages 2704: Mode of Commuting to School and Its Association with Physical Activity and Sedentary Habits in Young Ecuadorian Students

IJERPH, Vol. 15, Pages 2704: Mode of Commuting to School and Its Association with Physical Activity and Sedentary Habits in Young Ecuadorian Students

International Journal of Environmental Research and Public Health doi: 10.3390/ijerph15122704

Authors: Yaira Barranco-Ruiz Alfredo Xavier Guevara-Paz Robinson Ramírez-Vélez Palma Chillón Emilio Villa-González

Active commuting to and from school (ACS) could help to increase daily physical activity levels in youth; however, this association remains unknown in Ecuadorian youth. Thus, the aims of this study were (1) to determine the patterns of commuting to and from school and (2) to analyze the associations between ACS, physical activity (PA), and sedentary habits in Ecuadorian youth. A total of 732 students (65.3% males), aged 10–18 years (children = 246, young adolescents = 310, older adolescents = 162) from the central region of Ecuador participated in this study. A self-report questionnaire, including the usual mode and frequency of commuting, distance from home to school (PACO-Questionnaire), and PA and sedentary habits (YAP-Questionnaire), was used. Most of the sample lived ≤2 km from school; however, they were mainly passive commuters (96%). The most common mode of commuting was by car (to school = 43.4%, from school = 31.6%; p < 0.001). Children presented significantly higher scores (0–4) in PA outside school and total PA compared with older adolescents (2.20 ± 0.97 vs. 1.97 ± 0.96; p = 0.013 and 2.30 ± 0.76 vs. 2.09 ± 0.74, p = 0.019, respectively), as well as the lowest scores in sedentary habits (1.51 ± 0.65, p < 0.001). PA at school and total PA were positively associated with ACS (OR 3.137; 95% CI, 1.918 to 5.131; p < 0.001, and OR 2.543; 95% CI, 1.428 to 4.527; p = 0.002, respectively). In conclusion, passive modes of transportation were the most frequently used to commute to and from school in young Ecuadorians. PA at school and total PA were positively associated with ACS. Thus, interventions at school setting could be an opportunity to improve PA levels and additionally ACS in youth from the central region of Ecuador.



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IJERPH, Vol. 15, Pages 2705: Correlates of Mild Cognitive Impairment of Community-Dwelling Older Adults in Wuhan, China

IJERPH, Vol. 15, Pages 2705: Correlates of Mild Cognitive Impairment of Community-Dwelling Older Adults in Wuhan, China

International Journal of Environmental Research and Public Health doi: 10.3390/ijerph15122705

Authors: Xiaojun Liu Xiao Yin Anran Tan Meikun He Dongdong Jiang Yitan Hou Yuanan Lu Zongfu Mao

Mild cognitive impairment (MCI) is an early stage of Alzheimer’s disease or other forms of dementia that occurs mainly in older adults. The MCI phase could be considered as an observational period for the secondary prevention of dementia. This study aims to assess potential differences in the risk of MCI among different elderly groups in Wuhan, China, and to further identify the most vulnerable populations using logistic regression models. A total of 622 older adults participated in this study, and the prevalence of MCI was 34.1%. We found that individuals aged 80–84 (odds ratio, OR = 1.908, 95% confidence interval, 95% CI 1.026 to 3.549) or above (OR = 2.529, 95% CI 1.249 to 5.122), and those with two chronic diseases (OR = 1.982, 95% CI 1.153 to 3.407) or more (OR = 2.466, 95% CI 1.419 to 4.286) were more likely to be diagnosed with MCI. Those with high school degrees (OR = 0.451, 95% CI 0.230 to 0.883) or above (OR = 0.318, 95% CI 0.129 to 0.783) and those with a family per-capita monthly income of 3001–4500 yuan (OR = 0.320, 95% CI 0.137 to 0.750) or above (OR = 0.335, 95% CI 0.135 to 0.830) were less likely to experience MCI. The results also showed that those aged 80 or above were more likely to present with cognitive decline and/or reduced activities of daily living (ADL) function, with the odds ratios being 1.874 and 3.782, respectively. Individuals with two, or three or more chronic diseases were more likely to experience cognitive decline and/or reduced ADL function, with odds ratios of 2.423 and 2.631, respectively. Increased risk of suffering from either MCI and/or decline in ADL functioning is strongly positively associated with older age, lower educational levels, poorer family economic status, and multiple chronic diseases. Our findings highlight that the local, regional, and even national specific MCI-related health promotion measures and interventions must target these vulnerable populations.



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IJERPH, Vol. 15, Pages 2703: The Identification of Scientific Communities and Their Approach to Worldwide Malaria Research

IJERPH, Vol. 15, Pages 2703: The Identification of Scientific Communities and Their Approach to Worldwide Malaria Research

International Journal of Environmental Research and Public Health doi: 10.3390/ijerph15122703

Authors: José Antonio Garrido-Cardenas Francisco Manzano-Agugliaro Lilia González-Cerón Francisco Gil-Montoya Alfredo Alcayde-Garcia Nuria Novas Concepción Mesa-Valle

It is essential to establish a pattern to detect the strengths and weaknesses of working groups publishing on malaria, to promote coordination to facilitate the eradication of the disease. Given the complexity of the scientific network of groups and institutions studying malaria, it is necessary to use a mathematical algorithm that allows us to know the real structure of research on the disease in the world. In this work, articles with the word “malaria” in the title or author keywords gathered from Elsevier Scopus database were analyzed. By means of specific software, graphs were created. The analysis of the data allowed established different scientific communities, among which two were very diverse: one formed by those groups concerned about the vector transmission and control, and another one focused on the drug resistance of the parasite. Basic, applied, and operational research to eradicate malaria is an ambitious goal of the international institutions and the scientific community. The combination of effort and the establishment of a worldwide-scientific network that allows an effective interconnection (exchange) of knowledge, infrastructure technology, collaborators, financial resources, and datasets will contribute more effectively to end the disease.



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Πέμπτη 29 Νοεμβρίου 2018

IJERPH, Vol. 15, Pages 2702: Safety Analysis of Motorcycle Crashes in Seoul Metropolitan Area, South Korea: An Application of Nonlinear Optimal Scaling Methods

IJERPH, Vol. 15, Pages 2702: Safety Analysis of Motorcycle Crashes in Seoul Metropolitan Area, South Korea: An Application of Nonlinear Optimal Scaling Methods

International Journal of Environmental Research and Public Health doi: 10.3390/ijerph15122702

Authors: Younshik Chung Tai-Jin Song

This study identifies the critical factors that affect motorcycle crash severity based on Korean motorcycle crash data in 2009. Motorcyclists, the environment, roadways, other vehicles involved in the crashes, and traffic flow characteristics were used as variables for identifying critical factors. Multivariable statistical methods were used to analyze the data, including categorical principal components analysis (CatPCA) and nonlinear canonical correlation analysis (NLCCA). The results indicate that the following factors are the most critical in increasing motorcycle crash severity: age (motorcyclists in their teens and over fifty years old), motorcycle speed over 30 km/h, speed over 50 km/h for other vehicles involved in the crash, crashes with heavy vehicles such as buses and trucks, crashes on roadways less than six meters wide, crashes at curved sections, crashes at basic roadway segments without any speed control facilities, and head-on crashes. These findings are expected to serve as a valuable reference for formulating remedial policy measures to decrease the severity of motorcycle crashes on roadways in the Seoul metropolitan area of South Korea.



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IJERPH, Vol. 15, Pages 2700: Challenges Facing Home-Based Caregivers in the Management of Health Care Risk Waste

IJERPH, Vol. 15, Pages 2700: Challenges Facing Home-Based Caregivers in the Management of Health Care Risk Waste

International Journal of Environmental Research and Public Health doi: 10.3390/ijerph15122700

Authors: Thobile Zikhathile Harrison Atagana

The quadruple burden of diseases, early discharge from hospital and hospital at home have resulted in home-based care services becoming a requirement in South Africa. These home-based care services generate a significant amount of health care risk waste that is mismanaged. More attention is given to the health care risk waste generated in hospitals and clinics than to health care risk waste generated by home-based caregivers. Therefore, this study investigates the health care risk waste management practices by home-based caregivers. The study adopted a mixed research approach, qualitative and quantitative methods, using a literature review, interviews, and questionnaires as means of data collection. Results show that there are different types of health care risk waste generated as a result of different activities performed by home-based caregivers, but that the waste was found to be managed in an unsafe manner. The majority of households receiving home-based care did not have basic sanitation facilities such as toilets, running water and waste removal services, aggravating the issue of health care risk waste mismanagement. The study recommends a new policy framework that will lead to safe management practices of generated health care risk waste to be adopted by home-based caregivers.



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IJERPH, Vol. 15, Pages 2701: The Role of Vitamin D and Oxidative Stress in Chronic Kidney Disease

IJERPH, Vol. 15, Pages 2701: The Role of Vitamin D and Oxidative Stress in Chronic Kidney Disease

International Journal of Environmental Research and Public Health doi: 10.3390/ijerph15122701

Authors: Keith C. Norris Opeyemi Olabisi M. Edwina Barnett Yuan-Xiang Meng David Martins Chamberlain Obialo Jae Eun Lee Susanne B. Nicholas

Chronic kidney disease (CKD) is a major non-communicable disease associated with high rates of premature morbidity and mortality. The prevalence of hypovitaminosis D (deficiency of 25(OH)D or 25D) is greater in racial/ethnic minorities and in patients with CKD than the general population. Low 25D is associated with bone and mineral disorders as well as immune, cardiometabolic and cardiovascular (CV) diseases. Thus, it has been suggested that low 25D contributes to the poor outcomes in patients with CKD. The prevalence of hypovitaminosis D rises progressively with advancing severity of kidney disease with over 30% of patients with CKD stage 3 and 70% patients with CKD stage 5 estimated to have low levels of 25D. This report describes several of the abnormal physiologic and counter-regulatory actions related to low 25D in CKD such as those in oxidative stress and inflammatory systems, and some of the preclinical and clinical evidence, or lack thereof, of normalizing serum 25D levels to improve outcomes in patients with CKD, and especially for the high risk subset of racial/ethnic minorities who suffer from higher rates of advanced CKD and hypovitaminosis D.



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IJERPH, Vol. 15, Pages 2699: Worldwide Research on Circular Economy and Environment: A Bibliometric Analysis

IJERPH, Vol. 15, Pages 2699: Worldwide Research on Circular Economy and Environment: A Bibliometric Analysis

International Journal of Environmental Research and Public Health doi: 10.3390/ijerph15122699

Authors: José Luis Ruiz-Real Juan Uribe-Toril Jaime De Pablo Valenciano Juan Carlos Gázquez-Abad

The relevance of circular economy to environmental science has led to a notable increase of research works during the last few years. It is very important to know the evolution of the publications that relate these two concepts, as well as the main areas of knowledge in which these investigations are framed. The purpose is to understand and highlight the state of art of circular economy and the role and relationship of the environment. Bibliometric analysis allows to evaluate developments in knowledge on a specific subject and assesses the scientific influence of researches and sources. This paper analyses the worldwide research dynamics on circular economy in the period from 2006 to 2017. A bibliometric analysis of 743 articles was completed. The most productive journals in this field were Journal of Cleaner Production. The five most productive countries were China, United Kingdom, Italy, the Netherlands, and Germany. Works on the circular economy and environment has considerable potential and it is open to research fields as sustainability or industrial production. The findings of this study could prove useful for studies into environmental circular economy, as they show a global sight of this line of study. Thus, the article represents a contribution to identify the main trends in circular economy research and environment and, from there, propose future research initiatives.



https://ift.tt/2QqDwdM

IJERPH, Vol. 15, Pages 2698: Healthy Design and Urban Planning Strategies, Actions, and Policy to Achieve Salutogenic Cities

IJERPH, Vol. 15, Pages 2698: Healthy Design and Urban Planning Strategies, Actions, and Policy to Achieve Salutogenic Cities

International Journal of Environmental Research and Public Health doi: 10.3390/ijerph15122698

Authors: Stefano Capolongo Andrea Rebecchi Marco Dettori Letizia Appolloni Antonio Azara Maddalena Buffoli Lorenzo Capasso Alessandra Casuccio Gea Oliveri Conti Alessandro D’Amico Margherita Ferrante Umberto Moscato Ilaria Oberti Lorenzo Paglione Vincenzo Restivo Daniela D’Alessandro

Starting from a previous experience carried out by the working group “Building and Environmental Hygiene” of the Italian Society of Hygiene and Preventive Medicine (SItI), the aim of the present work is to define new strategic goals for achieving a “Healthy and Salutogenic City”, which will be useful to designers, local governments and public bodies, policy makers, and all professionals working at local health agencies. Ten key points have been formulated: 1. climate change and management of adverse weather events; 2. land consumption, sprawl, and shrinking cities; 3. tactical urbanism and urban resilience; 4. urban comfort, safety, and security perception; 5. strengths and weaknesses of urban green areas and infrastructures; 6. urban solid waste management; 7. housing emergencies in relation to socio-economic and environmental changes; 8. energy aspects and environmental planning at an urban scale; 9. socio-assistance and welfare network at an urban scale: importance of a rational and widespread system; and 10. new forms of living, conscious of coparticipation models and aware of sharing quality objectives. Design strategies, actions, and policies, identified to improve public health and wellbeing, underline that the connection between morphological and functional features of urban context and public health is crucial for contemporary cities and modern societies.



https://ift.tt/2Qtwepu

IJERPH, Vol. 15, Pages 2697: Improved Biosafety and Biosecurity Measures and/or Strategies to Tackle Laboratory-Acquired Infections and Related Risks

IJERPH, Vol. 15, Pages 2697: Improved Biosafety and Biosecurity Measures and/or Strategies to Tackle Laboratory-Acquired Infections and Related Risks

International Journal of Environmental Research and Public Health doi: 10.3390/ijerph15122697

Authors: Huasong Peng Muhammad Bilal Hafiz M. N. Iqbal

Herein, we reviewed laboratory-acquired infections (LAIs) along with their health-related biological risks to provide an evidence base to tackle biosafety/biosecurity and biocontainment issues. Over the past years, a broad spectrum of pathogenic agents, such as bacteria, fungi, viruses, parasites, or genetically modified organisms, have been described and gained a substantial concern due to their profound biological as well as ecological risks. Furthermore, the emergence and/or re-emergence of life-threatening diseases are of supreme concern and come under the biosafety and biosecurity agenda to circumvent LAIs. Though the precise infection risk after an exposure remains uncertain, LAIs inspections revealed that Brucella spp., Mycobacterium tuberculosis, Salmonella spp., Shigella spp., Rickettsia spp., and Neisseria meningitidis are the leading causes. Similarly, the human immunodeficiency virus (HIV) as well as hepatitis B (HBV) and C viruses (HCV), and the dimorphic fungi are accountable for the utmost number of viral and fungal-associated LAIs. In this context, clinical laboratories at large and microbiology, mycology, bacteriology, and virology-oriented laboratories, in particular, necessitate appropriate biosafety and/or biosecurity measures to ensure the safety of laboratory workers and working environment, which are likely to have direct or indirect contact/exposure to hazardous materials or organisms. Laboratory staff education and training are indispensable to gain an adequate awareness to handle biologically hazardous materials as per internationally recognized strategies. In addition, workshops should be organized among laboratory workers to let them know the epidemiology, pathogenicity, and human susceptibility of LAIs. In this way, several health-related threats that result from the biologically hazardous materials can be abridged or minimized and controlled by the correct implementation of nationally and internationally certified protocols that include proper microbiological practices, containment devices/apparatus, satisfactory facilities or resources, protective barriers, and specialized education and training of laboratory staffs. The present work highlights this serious issue of LAIs and associated risks with suitable examples. Potential preventive strategies to tackle an array of causative agents are also discussed. In this respect, the researchers and scientific community may benefit from the lessons learned in the past to anticipate future problems.



https://ift.tt/2BF7T81

IJERPH, Vol. 15, Pages 2696: Understanding the Social Contagion Effect of Safety Violations within a Construction Crew: A Hybrid Approach Using System Dynamics and Agent-Based Modeling

IJERPH, Vol. 15, Pages 2696: Understanding the Social Contagion Effect of Safety Violations within a Construction Crew: A Hybrid Approach Using System Dynamics and Agent-Based Modeling

International Journal of Environmental Research and Public Health doi: 10.3390/ijerph15122696

Authors: Huakang Liang Ken-Yu Lin Shoujian Zhang

Previous research has recognized the importance of eliminating safety violations in the context of a social group. However, the social contagion effect of safety violations within a construction crew has not been sufficiently understood. To address this deficiency, this research aims to develop a hybrid simulation approach to look into the cognitive, social, and organizational aspects that can determine the social contagion effect of safety violations within a construction crew. The hybrid approach integrates System Dynamics (SD) and Agent-based Modeling (ABM) to better represent the real world. Our findings show that different interventions should be employed for different work environments. Specifically, social interactions play a critical role at the modest hazard levels because workers in this situation may encounter more ambiguity or uncertainty. Interventions related to decreasing the contagion probability and the safety–productivity tradeoff should be given priority. For the low hazard situation, highly intensive management strategies are required before the occurrence of injuries or accidents. In contrast, for the high hazard situation, highly intensive proactive safety strategies should be supplemented by other interventions (e.g., a high safety goal) to further control safety violations. Therefore, this research provides a practical framework to examine how specific accident prevention measures, which interact with workers or environmental characteristics (i.e., the hazard level), can influence the social contagion effect of safety violations.



https://ift.tt/2KJjfL2

IJERPH, Vol. 15, Pages 2695: Personal Network Analysis in the Study of Social Support: The Case of Chronic Pain

IJERPH, Vol. 15, Pages 2695: Personal Network Analysis in the Study of Social Support: The Case of Chronic Pain

International Journal of Environmental Research and Public Health doi: 10.3390/ijerph15122695

Authors: Rosario Fernández-Peña José Luis Molina Oliver Valero

In the context of chronic illness, the individual’s social and relational environment plays a critical role as it can provide the informal support and care over time, beyond healthcare and social welfare institutions. Social Network Analysis represents an appropriate theoretical and methodological approach to study and understand social support since it provides measures of personal network structure, composition and functional content. The aim of this mixed method study is to present the usefulness of Personal Network Analysis to explore social support in the context of chronic pain. Personal and support network data of 30 people with chronic pain (20 alters for each ego, 600 relationships in total) were collected, obtaining measures of personal network structure and composition as well as information about social support characteristics. Also, semi-structured interviews with participants were conducted to identify the context of their experience of pain, their limitations as regards leading an autonomous life, their social support needs and other aspects concerning the effect of pain on their social and relational lives. This approach shows the importance of non-kin social support providers and the significant role of non-providers in the personal networks of people suffering chronic pain.



https://ift.tt/2E459no

IJERPH, Vol. 15, Pages 2694: A Comparison between the Predictors of Vaccine Uptake Intentions for Influenza and Dengue

IJERPH, Vol. 15, Pages 2694: A Comparison between the Predictors of Vaccine Uptake Intentions for Influenza and Dengue

International Journal of Environmental Research and Public Health doi: 10.3390/ijerph15122694

Authors: Chitra Panchapakesan Anita Sheldenkar Ysa Marie Cayabyab Janelle Shaina Ng Jiahui Lu May O. Lwin

Infectious diseases have a huge health and economic burden globally. Vaccination has been found to be a crucial health intervention for diseases. The study aims to compare the drivers of vaccine uptake for influenza and dengue, and to understand the key drivers within each of the diseases in predicting vaccine uptake intentions. Data were collected from 1000 Singaporeans and Singapore permanent residents between the ages of 21 and 70 through face to face surveys. Overall, intention to get vaccinated was low for both diseases. Comparing the means between the knowledge and perceptions regarding influenza and dengue and their vaccine uptake intentions, perceived susceptibility was significantly higher for influenza than dengue; and perceived severity, knowledge of the disease, and benefits of the vaccine were significantly higher for dengue. Looking at the key drivers within the diseases, perceived susceptibility towards the diseases and benefits of the vaccine were positively associated with vaccination uptake intentions for influenza and dengue. Perceived barriers towards the vaccine were negatively associated with vaccine uptake for dengue. Programs conducted for public health promotion should focus on increasing the public’s awareness of the susceptibility and seriousness of the diseases, and the benefits of getting vaccinated.



https://ift.tt/2BG82rX

Τετάρτη 28 Νοεμβρίου 2018

IJERPH, Vol. 15, Pages 2693: Biomarkers of Exposure to Secondhand and Thirdhand Tobacco Smoke: Recent Advances and Future Perspectives

IJERPH, Vol. 15, Pages 2693: Biomarkers of Exposure to Secondhand and Thirdhand Tobacco Smoke: Recent Advances and Future Perspectives

International Journal of Environmental Research and Public Health doi: 10.3390/ijerph15122693

Authors: Sònia Torres Carla Merino Beatrix Paton Xavier Correig Noelia Ramírez

Smoking is the leading preventable disease worldwide and passive smoking is estimated to be the cause of about 1.0% of worldwide mortality. The determination of tobacco smoke biomarkers in human biological matrices is key to assess the health effects related to the exposure to environmental tobacco smoke. The biomonitoring of cotinine, the main nicotine metabolite, in human biofluids—including urine, serum or saliva—has been extensively used to assess this exposure. However, the simultaneous determination of cotinine together with other tobacco biomarkers and the selection of alternative biological matrices, such as hair, skin or exhaled breath, would enable a better characterization of the kind and extent of tobacco exposure. This review aims to perform a critical analysis of the up-to-date literature focused on the simultaneous determination of multiple tobacco smoke biomarkers studied in different biological matrices, due to the exposure to secondhand smoke (SHS) and thirdhand smoke (THS). Target biomarkers included both tobacco-specific biomarkers—nicotine and tobacco specific nitrosamine biomarkers—and tobacco-related biomarkers, such as those from polycyclic aromatic hydrocarbons, volatile organic compounds, metals and carbon monoxide. To conclude, we discuss the suitability of determining multiple biomarkers through several relevant examples of SHS and THS exposure.



https://ift.tt/2rag6Ll

IJERPH, Vol. 15, Pages 2692: Mobile Phone Use and Mental Health. A Review of the Research That Takes a Psychological Perspective on Exposure

IJERPH, Vol. 15, Pages 2692: Mobile Phone Use and Mental Health. A Review of the Research That Takes a Psychological Perspective on Exposure

International Journal of Environmental Research and Public Health doi: 10.3390/ijerph15122692

Authors: Sara Thomée

The purpose of this study was to carry out a review of observational studies that consider links between mobile phone use and mental health from a psychological or behavioral perspective. Systematic literature searches in PubMed and PsycINFO for articles published until 2017 were done. Exclusion criteria included: papers that considered radiofrequency fields, attention, safety, relational consequences, sexual behavior, cyberbullying, and reviews, qualitative, and case or experimental studies. A total of 4738 papers were screened by title and abstract, 404 were retrieved in full text, and 290 were included. Only 5% had any longitudinal design. Self-reporting was the dominating method of measurement. One third of the studies included children or youth. A majority of adult populations consisted of university students and/or self-selected participants. The main research results included associations between frequent mobile phone use and mental health outcomes, such as depressive symptoms and sleep problems. Mobile phone use at bedtime was associated with, e.g., shorter sleep duration and lower sleep quality. “Problematic use” (dependency) was associated with several negative outcomes. In conclusion, associations between mobile phone use and adverse mental health outcomes are found in studies that take a psychological or behavioral perspective on the exposure. However, more studies of high quality are needed in order to draw valid conclusions about the mechanisms and causal directions of associations.



https://ift.tt/2DQLRAL

IJERPH, Vol. 15, Pages 2691: The Effects of Substance Abuse on Blood Glucose Parameters in Patients with Diabetes: A Systematic Review and Meta-Analysis

IJERPH, Vol. 15, Pages 2691: The Effects of Substance Abuse on Blood Glucose Parameters in Patients with Diabetes: A Systematic Review and Meta-Analysis

International Journal of Environmental Research and Public Health doi: 10.3390/ijerph15122691

Authors: Omorogieva Ojo Xiao-Hua Wang Osarhumwese Osaretin Ojo Jude Ibe

Background: People who abuse substances are at increased risk of metabolic syndrome and diabetes resulting partly from increased cell damage and due to the effects of opioids on glucose homeostasis. Therefore, people with diabetes who abuse substances may carry greater health risks than the general population resulting from their effect on glucose metabolism. These substances may be in the form of cannabis, hallucinogens, opioids, and stimulants. Therefore, the aim of this review was to evaluate the effects of substance abuse on blood glucose parameters in patients with diabetes. Method: Databases including Embase, Psycho-Info, Google Scholar and PubMed were searched systematically for relevant articles from database inception to May 2018. Search terms including medical subject headings (MeSH) based on the Population, Intervention, Comparator and Outcomes (PICO) framework was used to access the databases. Eligible articles were selected based on set inclusion and exclusion criteria. The articles reviewed were evaluated for quality and meta-analysis and sensitivity analysis were carried out using the Review Manager (RevMan 5.3, The Cochrane Collaboration, Copenhagen, Denmark). The Random effects model was used for the data analysis. Results: Twelve studies which met the inclusion criteria were included in the systematic review, while nine articles were selected for the meta-analysis. The results of the meta-analysis showed that substance abuse does not have significant effects (p > 0.05) on postprandial blood glucose and glycated haemoglobin in patients with diabetes. With respect to the effect of substance abuse on fasting blood glucose, while this was significant (p < 0.05) following meta-analysis, the results of the sensitivity test did not demonstrate any significant difference (p > 0.05) between patients who abused substances compared with control. This would suggest that the effect of substance abuse on fasting blood glucose in these patients was not very reliable or not consistent. Conclusions: The effect of substance abuse on glycated haemoglobin and postprandial blood glucose in patients with diabetes was not significant. In the meta-analysis, while the value was slightly lower with respect to postprandial blood glucose, this was slightly higher in relation to HbA1c in the substance abuse group compared with control. On the other hand, the effect of substance abuse on fasting blood glucose was significant (p = 0.03) compared with control, but this was attenuated following a sensitivity test. A range of factors including eating habits, characteristics of drugs, erratic lifestyle of patients may explain the outcome of this review. There is the need for randomised controlled trials that will include diet and medication history in order to fully understand the effect of substance abuse on blood glucose parameters in patients with diabetes.



https://ift.tt/2AwtSMF

IJERPH, Vol. 15, Pages 2690: Health Consequences of an Armed Conflict in Zamboanga, Philippines Using a Syndromic Surveillance Database

IJERPH, Vol. 15, Pages 2690: Health Consequences of an Armed Conflict in Zamboanga, Philippines Using a Syndromic Surveillance Database

International Journal of Environmental Research and Public Health doi: 10.3390/ijerph15122690

Authors: Miguel Antonio Salazar Ronald Law Volker Winkler

The Zamboanga armed conflict was a 19-day long encounter in the Philippines in 2013 that displaced 119,000 people from their homes. This study describes the health consequences of this complex emergency in different age groups, time periods, and health facilities using data from Surveillance in Post Extreme Emergencies and Disasters (SPEED). This is a descriptive study of the SPEED database spanning 196 days of observation post-disaster and 1065 SPEED reports from 49 health facilities. Evacuation centers and village health centers, both primary care facilities, had the highest number of consults. Common infections and noncommunicable diseases were the most common reasons for consultations, namely, acute respiratory infections, fever, watery diarrhea, skin disease, and hypertension. Infections can be associated with environmental conditions in displaced populations, while hypertension has a high prevalence in the country and implies long-term care. Conflict-related injuries and deaths were not frequently observed due to the volatile situation that influenced health-seeking behavior as well as possible reporting gaps. In conclusion, in complex emergencies, as in natural disasters, wherein early alert and warning for potential outbreaks is crucial, SPEED can assist decision makers on response and recovery interventions. Linkages between SPEED and other surveillance and reporting systems need to be explored.



https://ift.tt/2TTGqqq

IJERPH, Vol. 15, Pages 2689: Hope for the Best, Prepare for the Worst—An Assessment of Flood Preparedness at Primary Health Care Facilities in Central Vietnam

IJERPH, Vol. 15, Pages 2689: Hope for the Best, Prepare for the Worst—An Assessment of Flood Preparedness at Primary Health Care Facilities in Central Vietnam

International Journal of Environmental Research and Public Health doi: 10.3390/ijerph15122689

Authors: Andreas Älgå Thi Anh Thu Dang Dell D. Saulnier Gia Thanh Nguyen Johan von Schreeb

Background: Floods affect over 85 million people every year and are one of the deadliest types of natural disasters. The health effects of floods are partly due to a loss of access to health care. This loss can be limited with proper flood preparedness. Flood preparedness is especially needed at the primary health care (PHC) level. Flood preparedness assessments can be used to identify vulnerable facilities and help target efforts. The existing research on PHC flood preparedness is limited. We aimed to assess the flood preparedness of PHC facilities in a flood-prone province in central Vietnam. Methods: Based on flood experience, the PHC facilities in the province were grouped as “severe” (n = 23) or “non-severe” (n = 129). Assessments were conducted during monsoon season at five facilities from each group, using a pre-tested, semi-structured questionnaire. Data were checked against official records when possible. Results: Nine of the ten facilities had a flood plan and four received regular flood preparedness training. Six facilities reported insufficient preparedness support. Half of the facilities had additional funding available for flood preparedness, or in case of a flood. Flood preparedness training had been received by 21/28 (75%) of the staff at the facilities with severe flood experience, versus 15/25 (52%) of the staff at the non-severe experience facilities. Conclusions: Our results suggest that the assessed PHC facilities were not sufficiently prepared for the expected floods during monsoon season. PHC flood preparedness assessments could be used to identify vulnerable facilities and populations in flood-prone areas. More research is needed to further develop and test the validity and reliability of the questionnaire.



https://ift.tt/2zurgiy

IJERPH, Vol. 15, Pages 2688: Effects of Hydraulic Loading Rate on Nutrients Removal from Anaerobically Digested Swine Wastewater by Multi Soil Layering Treatment Bioreactor

IJERPH, Vol. 15, Pages 2688: Effects of Hydraulic Loading Rate on Nutrients Removal from Anaerobically Digested Swine Wastewater by Multi Soil Layering Treatment Bioreactor

International Journal of Environmental Research and Public Health doi: 10.3390/ijerph15122688

Authors: Junyuan Guo Yuling Zhou Yijin Yang Cheng Chen Jiajing Xu

A multi soil layering (MSL) treatment bioreactor was developed aiming at nutrients removal from anaerobically digested swine wastewater (ADSW). The start-up of the MSL bioreactor and its performance in nutrients removal at different hydraulic loading rate (HLR) were investigated. Results showed that the MSL bioreactor was successfully started up after operation for 28 days, and at this time, the removal efficiencies of ammonia-N, total nitrogen (TN) and total phosphorus (TP) in the ADSW reached 63.6%, 58.5%, and 46.5%, respectively. The MSL bioreactor showed a stable performance during the whole working process with varying HLR from 80 to 200 L/(m2·day). Maximum removal efficiencies of ammonia-N, TN and TP were obtained at 160 L/(m2·day), and was appeared as 94.2%, 94.4%, and 92.5%, respectively. It was worth noting that iron scraps were the key factor that enhanced the independent capability of the MSL bioreactor in TP removal, because there was only 21.4–25.8% of the TP was removed when the MSL bioreactor run with no iron addition.



https://ift.tt/2rcOANv

IJERPH, Vol. 15, Pages 2675: Recreational Use of Spa Thermal Waters: Criticisms and Perspectives for Innovative Treatments

IJERPH, Vol. 15, Pages 2675: Recreational Use of Spa Thermal Waters: Criticisms and Perspectives for Innovative Treatments

International Journal of Environmental Research and Public Health doi: 10.3390/ijerph15122675

Authors: Federica Valeriani Lory Marika Margarucci Vincenzo Romano Spica

Natural spa springs are diffused all over the world and their use in pools is known since ancient times. This review underlines the cultural and social spa context focusing on hygiene issues, public health guidelines and emerging concerns regarding water management in wellness or recreational settings. The question of the “untouchability” of therapeutic natural waters and their incompatibility with traditional disinfection processes is addressed considering the demand for effective treatments that would respect the natural properties. Available strategies and innovative treatments are reviewed, highlighting potentials and limits for a sustainable management. Alternative approaches comprise nanotechnologies, photocatalysis systems, advanced filtration. State of the art and promising perspectives are reported considering the chemical-physical component and the biological natural complexity of the spa water microbiota.



https://ift.tt/2P5IZlx

IJERPH, Vol. 15, Pages 2687: Activity of Antioxidant Enzymes and Their Association with Lipid Profile in Mexican People without Cardiovascular Disease: An Analysis of Interactions

IJERPH, Vol. 15, Pages 2687: Activity of Antioxidant Enzymes and Their Association with Lipid Profile in Mexican People without Cardiovascular Disease: An Analysis of Interactions

International Journal of Environmental Research and Public Health doi: 10.3390/ijerph15122687

Authors: Susana Rivera-Mancía Angélica Saraí Jiménez-Osorio Omar Noel Medina-Campos Eloísa Colín-Ramírez Maite Vallejo Ariadna Alcántara-Gaspar Raúl Cartas-Rosado Jesús Vargas-Barrón José Pedraza-Chaverri

Dyslipidemia and oxidative stress are both considered to be factors involved in cardiovascular disease; however, the relationship between them has been little explored. In this work, we studied the association between the lipid profile and the activity of antioxidant enzymes such as paraoxonase-1 (PON1), superoxide dismutase 1 (SOD1), ceruloplasmin, and catalase, as well as total antioxidant capacity (the ferric-reducing ability of plasma (FRAP)), in 626 volunteers without cardiovascular disease. Their lipid profile was evaluated, and they were classified as having or not having high triglycerides (↑TG), high low-density cholesterol (↑LDLC), and low high-density cholesterol (↓HDLC), resulting in eight groups: Without dyslipidemia, ↑TG, ↑LDLC, ↓HDLC, ↑TG↑LDLC, ↑TG↓HDLC, ↑LDLC↓HDLC, and ↑TG↑LDLC↓HDLC. When comparisons by group were made, no significant differences in the activity of antioxidant enzymes were obtained. However, the linear regression analysis considering the potential interactions between ↑TG, ↑LDLC, and ↓HDLC suggested a triple interaction between the three lipid profile alterations on the activity of PON1 and a double interaction between ↑TG and ↑LDLC on ferroxidase-ceruloplasmin activity. The analysis presented in this work showed an association between the lipid profile and antioxidant-enzyme activity and highlighted the importance of considering the interactions between the components of a phenomenon instead of studying them individually. Longitudinal studies are needed to elucidate the nature of these associations.



https://ift.tt/2ztY0Zs

IJERPH, Vol. 15, Pages 2686: Metabolomics Reveals Metabolic Changes Caused by Low-Dose 4-Tert-Octylphenol in Mice Liver

IJERPH, Vol. 15, Pages 2686: Metabolomics Reveals Metabolic Changes Caused by Low-Dose 4-Tert-Octylphenol in Mice Liver

International Journal of Environmental Research and Public Health doi: 10.3390/ijerph15122686

Authors: Kun Zhou Xingwang Ding Jing Yang Yanhui Hu Yun Song Minjian Chen Rongli Sun Tianyu Dong Bo Xu Xiumei Han Keqin Wu Xiaoling Zhang Xinru Wang Yankai Xia

Background: Humans are constantly exposed to low concentrations of 4-tert-octylphenol (OP). However, studies investigating the effects of low-dose OP on the liver are scarce, and the mechanism of these effects has not been thoroughly elucidated to date. Methods: Adult male institute of cancer research (ICR) mice were exposed to low-dose OP (0, 0.01 and 1 μg/kg/day) for 7 consecutive days. Weights of mice were recorded daily during the experiment. Blood serum levels of OP, alanine aminotransferase (ALT) and aspartate aminotransferase (AST) were determined, and haematoxylin-eosin (HE) staining of the liver was performed. We applied an integrated metabolomic and enzyme gene expression analysis to investigate liver metabolic changes, and the gene expression of related metabolic enzymes was determined by real-time PCR and ELISA. Results: OP in blood serum was increased after OP exposure, while body weights of mice were unchanged. Liver weight and its organ coefficient were decreased significantly in the OP (1 μg/kg/day) group, but ALT and AST, as well as the HE staining results, were unchanged after OP treatment. The levels of cytidine, uridine, purine and N-acetylglutamine were increased significantly, and the level of vitamin B6 was decreased significantly in mice treated with OP (1 μg/kg/day). The mRNA and protein levels of Cda and Shmt1 were both increased significantly in OP (1 μg/kg/day)-treated mice. Conclusions: Through metabolomic analysis, our study firstly found that pyrimidine and purine synthesis were promoted and that N-acetylglutamine was upregulated after low-dose OP treatment, indicating that the treatment disturbed nucleic acid and amino acid metabolism in mice liver.



https://ift.tt/2DM2sG1

IJERPH, Vol. 15, Pages 2684: Social Network Analysis of Factors Influencing Green Building Development in China

IJERPH, Vol. 15, Pages 2684: Social Network Analysis of Factors Influencing Green Building Development in China

International Journal of Environmental Research and Public Health doi: 10.3390/ijerph15122684

Authors: Ning Huang Libiao Bai Hailing Wang Qiang Du Long Shao Jingtao Li

Green buildings have been viewed as one of the most effective solutions to the negative environmental impacts of construction activities. For the sustainable development of the economy and the environment, many governments in the world have launched a variety of policies to encourage the development of green buildings. However, green targets achieved during the operational stage of green buildings are far below the expectations from the design stage. In addition, the development of green buildings is unevenly distributed in different cities. To help resolve these issues, this paper identifies 28 green building influencing factors from two perspectives, the life cycle and stakeholders. Then, a social network analysis is used to analyse their interactions and identify the critical factors. Our results show that government supervision, incremental cost, property management experience, and the awareness of environmental protection in green buildings are the critical influencing factors in promoting green building development. However, some factors related to contractors, designers and suppliers are not as important as perceived. Finally, some policy recommendations are proposed to promote green buildings in China.



https://ift.tt/2zuKAwd

IJERPH, Vol. 15, Pages 2685: Older Adults Using Our Voice Citizen Science to Create Change in Their Neighborhood Environment

IJERPH, Vol. 15, Pages 2685: Older Adults Using Our Voice Citizen Science to Create Change in Their Neighborhood Environment

International Journal of Environmental Research and Public Health doi: 10.3390/ijerph15122685

Authors: Anthony G. Tuckett Abbey Freeman Sharon Hetherington Paul A. Gardiner Abby C. King On behalf of Burnie Brae Citizen Scientists On behalf of Burnie Brae Citizen Scientists

Physical activity, primarily comprised of walking in older adults, confers benefits for psychological health and mental well-being, functional status outcomes and social outcomes. In many communities, however, access to physical activity opportunities are limited, especially for older adults. This exploratory study engaged a small sample (N = 8) of adults aged 65 or older as citizen scientists to assess and then work to improve their communities. Using a uniquely designed mobile application (the Stanford Healthy Neighborhood Discovery Tool), participants recorded a total of 83 geocoded photos and audio narratives of physical environment features that served to help or hinder physical activity in and around their community center. In a facilitated process the citizen scientists then discussed, coded and synthesized their data. The citizen scientists then leveraged their findings to advocate with local decision-makers for specific community improvements to promote physical activity. These changes focused on: parks/playgrounds, footpaths, and traffic related safety/parking. Project results suggest that the Our Voice approach can be an effective strategy for the global goals of advancing rights and increasing self-determination among older adults.



https://ift.tt/2P9ywpr

IJERPH, Vol. 15, Pages 2681: One-Year Follow-Up Examination of the Impact of the North Carolina Healthy Food Small Retailer Program on Healthy Food Availability, Purchases, and Consumption

IJERPH, Vol. 15, Pages 2681: One-Year Follow-Up Examination of the Impact of the North Carolina Healthy Food Small Retailer Program on Healthy Food Availability, Purchases, and Consumption

International Journal of Environmental Research and Public Health doi: 10.3390/ijerph15122681

Authors: Stephanie B. Jilcott Pitts Qiang Wu Kimberly P. Truesdale Lindsey Haynes-Maslow Jared T. McGuirt Alice Ammerman Ronny Bell Melissa N. Laska

We examined the short-term impact of the North Carolina Healthy Food Small Retailer Program (HFSRP), a legislatively appropriated bill providing funding up to $25,000 to small food retailers for equipment to stock and promote healthier foods, on store-level availability and purchase of healthy foods and beverages, as well as customer dietary patterns, one year post-policy implementation. We evaluated healthy food availability using a validated audit tool, purchases using customer bag-checks, and diet using self-reported questionnaires and skin carotenoid levels, assessed via Veggie Meter™, a non-invasive tool to objectively measure fruit and vegetable consumption. Difference-in-difference analyses were used to examine changes in HFSRP stores versus control stores after 1 year. There were statistically significant improvements in healthy food supply scores (availability), with the Healthy Food Supply HFS score being −0.44 points lower in control stores and 3.13 points higher in HFSRP stores pre/post HFSRP (p = 0.04). However, there were no statistically significant changes in purchases or self-reported consumption or skin carotenoids among customers in HFSRP versus control stores. Additional time or other supports for retailers (e.g., marketing and promotional materials) may be needed for HFSRP implementation to influence purchase and consumption.



https://ift.tt/2DO80ja

IJERPH, Vol. 15, Pages 2682: Association between Problematic Internet Use and Sleep Disturbance among Adolescents: The Role of the Child’s Sex

IJERPH, Vol. 15, Pages 2682: Association between Problematic Internet Use and Sleep Disturbance among Adolescents: The Role of the Child’s Sex

International Journal of Environmental Research and Public Health doi: 10.3390/ijerph15122682

Authors: Jiewen Yang Yangfeng Guo Xueying Du Yi Jiang Wanxin Wang Di Xiao Tian Wang Ciyong Lu Lan Guo

Use of the Internet has become an integral part of daily life. Adolescents are especially at a higher risk of developing problematic Internet use (PIU). Although one of the most well-known comorbid conditions of PIU is sleep disturbance, little is known about the sex disparity in this association. This school-based survey in students of grades 7–9 was conducted to estimate the prevalence of PIU and sleep disturbance among Chinese adolescents, to test the association between PIU and sleep disturbance, and to investigate the role of the child’s sex in this association. A two-stage stratified cluster sampling method was used to recruit participants, and two-level logistic regression models were fitted. The mean Internet addiction test score was 37.2 (SD: 13.2), and 15.5% (736) met the criteria for PIU. After adjusting for control variables, problematic Internet users were at a higher risk of sleep disturbance (adjusted odds ratio = 2.41, 95% confidence interval (CI) = 2.07–3.19). Sex-stratified analyses also demonstrated that association was greater in girls than boys. In this respect, paying more attention to the sleep patterns of adolescents who report excessive Internet use is recommended, and this early identification may be of practical importance for schools, parents, and adolescents themselves.



https://ift.tt/2QnywXd

IJERPH, Vol. 15, Pages 2683: Population Exposure to Ambient PM2.5 at the Subdistrict Level in China

IJERPH, Vol. 15, Pages 2683: Population Exposure to Ambient PM2.5 at the Subdistrict Level in China

International Journal of Environmental Research and Public Health doi: 10.3390/ijerph15122683

Authors: Ying Long Jianghao Wang Kang Wu Junjie Zhang

Fine-particulate pollution is a major public health concern in China. Accurate assessment of the population exposed to PM2.5 requires high-resolution pollution and population information. This paper assesses China’s potential population exposure to PM2.5, maps its spatiotemporal variability, and simulates the effects of the recent air pollution control policy. We relate satellite-based Aerosol Optical Depth (AOD) retrievals to ground-based PM2.5 observations. We employ block cokriging (BCK) to improve the spatial interpolation of PM2.5 distribution. We use the subdistrict level population data to estimate and map the potential population exposure to PM2.5 pollution in China at the subdistrict level, the smallest administrative unit with public demographic information. During 8 April 2013 and 7 April 2014, China’s population-weighted annual average PM2.5 concentration was nearly 7 times the annual average level suggested by the World Health Organization (WHO). About 1322 million people, or 98.6% of the total population, were exposed to PM2.5 at levels above WHO’s daily guideline for longer than half a year. If China can achieve its Action Plan on Prevention and Control of Air Pollution targets by 2017, the population exposed to PM2.5 above China’s daily standard for longer than half a year will be reduced by 85%.



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IJERPH, Vol. 15, Pages 2680: Characterization of Environmental Health Inequalities Due to Polyaromatic Hydrocarbon Exposure in France

IJERPH, Vol. 15, Pages 2680: Characterization of Environmental Health Inequalities Due to Polyaromatic Hydrocarbon Exposure in France

International Journal of Environmental Research and Public Health doi: 10.3390/ijerph15122680

Authors: Despoina Ioannidou Laure Malherbe Maxime Beauchamp Nicolas P.A. Saby Roseline Bonnard Julien Caudeville

Reducing environmental health inequalities has become a major focus of public health efforts in France, as evidenced by the French action plans for health and the environment. To evaluate environmental inequalities, routine monitoring networks provide a valuable source of data on environmental contamination, which can be used in integrated assessments, to identify overexposed populations and prioritize actions. However, available databases generally do not meet sufficient spatial representativeness to characterize population exposure, as they are usually not assembled for this specific purpose. The aim of this study was to develop geoprocessing procedures and statistical methods to build spatial environmental variables (water, air, soil, and food pollutant concentrations) at a fine resolution, and provide appropriate input for the exposure modelling. Those methods were designed to combine in situ monitoring data with correlated auxiliary information (for example, atmospheric emissions, population, and altitude), in order to better represent the variability of the environmental compartment quality. The MODUL’ERS multimedia exposure model developed by INERIS (French Institute for industrial Environment and Risks) was then used to assess the transfer of substances from the environment to humans, through inhalation and ingestion pathway characterization. We applied the methodology to a carcinogenic Polycyclic Aromatic Hydrocarbon substance, benzo[a]pyrene(B[a]P), to map spatialized exposure indicators, at the national scale. The largest environmental contribution corresponded to the ingestion pathway. Data processing algorithms and calculation of exposure will be integrated into the French coordinated integrated environment and health platform PLAINE (PLteforme intégrée d’Analyse des INégalités Environnementales) which has been developed to map and analyze environmental health inequalities.



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IJERPH, Vol. 15, Pages 2679: Utilization of Formal and Informal Care by Community-Living People with Dementia: A Comparative Study between Sweden and Italy

IJERPH, Vol. 15, Pages 2679: Utilization of Formal and Informal Care by Community-Living People with Dementia: A Comparative Study between Sweden and Italy

International Journal of Environmental Research and Public Health doi: 10.3390/ijerph15122679

Authors: Carlos Chiatti Danae Rodríguez Gatta Agneta Malmgren Fänge Valerio Scandali Filippo Masera Connie Lethin on behalf of the UP-TECH and TECH@HOME research groups

Background: Dementia is a public health priority with a dramatic social and economic impact on people with dementia (PwD), their caregivers and societies. The aim of this study was to contribute to the knowledge on how utilization of formal and informal care varies between Sweden and Italy. Methods: Data were retrieved from two trials: TECH@HOME (Sweden) and UP-TECH (Italy). The sample consisted of 89 Swedish and 317 Italian dyads (PwD and caregivers). Using bivariate analysis, we compared demographic characteristics and informal resource utilization. Multiple linear regression was performed to analyze factors associated with time spent on care by the informal caregivers. Results: Swedish participants utilized more frequently health care and social services. Informal caregivers in Italy spent more time in caregiving than the Swedish ones (6.3 and 3.7 h per day, respectively). Factors associated with an increased time were country of origin, PwD level of dependency, living situation, use of formal care services and occupation. Conclusions: Care and service utilization significantly varies between Sweden and Italy. The level of formal care support received by the caregivers has a significant impact on time spent on informal care. Knowledge on the factors triggering formal care resources utilization by PwD and their caregivers might further support care services planning and delivery across different countries.



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Τρίτη 27 Νοεμβρίου 2018

IJERPH, Vol. 15, Pages 2678: Biomedical Variables and Adaptation to Disease and Health-Related Quality of Life in Polish Patients with MS

IJERPH, Vol. 15, Pages 2678: Biomedical Variables and Adaptation to Disease and Health-Related Quality of Life in Polish Patients with MS

International Journal of Environmental Research and Public Health doi: 10.3390/ijerph15122678

Authors: Joanna Dymecka Mariola Bidzan

The aim of this research was to assess the level of adaptation to multiple sclerosis (Sclerosis multiplex; MS) and health-related quality of life (HRQoL) of the study population as well as to determine the relationship between biomedical factors related to the course of multiple sclerosis, adaptation to the disease, and HRQoL. Analysis of medical records, clinical and psychological interviews, the Extended Disability Status Scale (EDSS), Guy’s Neurological Disability Scale (GNDS), the Acceptance of Illness Scale (AIS), and the Multiple Sclerosis Impact Scale 29 (MSIS-29) were collected from 137 patients with MS. It was found that there was a relation between motor impairment, neurological disability, adaptation to illness, and HRQoL; it was also found that there were negative correlations between adaptation to illness and the severity of lower-limb disability, fatigue, mood disorders, other problems related to MS, and upper-limb disability. Of all the symptoms, lower-limb disability, fatigue, and mood disorders had the strongest relation with adaptation. All of the analysed symptoms were found to correlate with HRQoL. Of all the symptoms, HRQoL was most affected by lower- and upper-limb disability, fatigue, other MS problems, and mood disorders.



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IJERPH, Vol. 15, Pages 2677: Obesity in Older Type 2 Diabetic Patients: Does Working Environment Add Vulnerability?

IJERPH, Vol. 15, Pages 2677: Obesity in Older Type 2 Diabetic Patients: Does Working Environment Add Vulnerability?

International Journal of Environmental Research and Public Health doi: 10.3390/ijerph15122677

Authors: Maria Piedade Brandão Margarida Fonseca Cardoso

Little is known about how working adults with type 2 diabetes are managing their health. This study aims to analyze the associations between health, behavioral, and sociodemographic characteristics and obesity in older diabetic patients in Europe. Data from the Survey of Health, Ageing, and Retirement in Europe was used to compare 1447 participants that were identified as having type 2 diabetes with 28,047 participants without diabetes. Multilevel logistic models stratified by type 2 diabetes examined the relationships of health, behavioral, and sociodemographic characteristics with obesity. The proportion of physical inactivity was significantly higher among those with type 2 diabetes (15.0% vs. 6.1%). Individuals with diabetes had more chronic diseases, more limitations in activities, higher body mass index, more depression, lower quality of life and well-being, and lower employment rate. Among those with type 2 diabetes, those employed were more likely to be obese (OR = 1.377, 95% CI, 1.023 to 1.853) and women were 52% more likely to be obese than men. The surveillance of weight in working environments should be required within workers with type 2 diabetes. It is concluded that this and other adjustments could be beneficial in people with diabetes.



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IJERPH, Vol. 15, Pages 2676: Development and Validation of a Simple Convenience Store SHELF Audit

IJERPH, Vol. 15, Pages 2676: Development and Validation of a Simple Convenience Store SHELF Audit

International Journal of Environmental Research and Public Health doi: 10.3390/ijerph15122676

Authors: Tanya M. Horacek Elif Dede Yildirim Erin Kelly Adrienne A. White Karla P. Shelnutt Kristin Riggsbee Melissa D. Olfert Jesse Stabile Morrell Anne E. Mathews Terezie T. Mosby Tandalayo Kidd Kendra Kattelmann Geoffrey Greene Lisa Franzen-Castle Sarah Colby Carol Byrd-Bredbenner Onikia Brown

Background This paper describes the development, reliability, and convergent validity of a practical tool—the Convenience Store Supportive Healthy Environment for Life-Promoting Food (SHELF) Audit. Methods Audit items included: a variety of fresh, processed, and frozen fruits and vegetables; low-fat dairy products; healthy staples and frozen meals; healthy food incentive programs; items sold in check-out areas; portion/cup sizes; and pricing. Each audit item was scored using a five-point semantic-differential scale (1 = provides little or no support for healthful foods to 5 = provides high support for healthful foods). Convergent validity was examined by comparing the SHELF audit to Ghirardelli et al. and Laska et al. store audits. Statistical analysis included: Factor analysis, ANOVA, and Spearman correlations. Results SHELF included three factors: a Fruits/Vegetables scale (eight items, α = 0.79; total potential points = 34); a Healthy Foods scale (four items, α = 0.72; total potential points = 16); and a Supports scale (four items, α = 0.685; total potential points = 16). Only 6% of the 124 convenience stores assessed scored in the most healthful range (46–66). The assessed drug stores (n = 15) scored higher than convenience stores (n = 81) on the Healthy Foods and Supports scales but not the Fruits/Vegetables scale. The SHELF sub-scores were highly correlated with other audit tools indicating convergent validity. Conclusion The SHELF convenience store audit is a valid, reliable tool for assessing the degree to which convenience stores support healthfulness regarding Fruits/Vegetables, Healthy Foods, and Supports for choosing healthy.



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COPD, airflow limitation and chronic bronchitis in farmers: a systematic review and meta-analysis

Introduction

The current definition of chronic obstructive pulmonary disease (COPD) associates persistent airflow limitation and chronic respiratory symptoms. Agricultural work has been associated with an increased risk of developing COPD, but the prevalence and definition of the disease vary greatly between studies. This meta-analysis aimed to assess the association between agricultural work and COPD using the most widely used definitions of the disease.

Methods

Inclusion criteria were: (1) design: cross-sectional or longitudinal, (2) groups: at least one group of farmers and a control group of non-farmers, (3) outcome: prevalence or unadjusted OR of COPD, airflow limitation and/or chronic bronchitis, (4) study subjects: groups of exposed subjects comprising ≥30 individuals and with a mean age ≥40 years and (5) language: English and French language, full-length, original publications in peer-reviewed journals.

Results

In total, 22 manuscripts were included in the meta-analysis. Eight studies assessed only the prevalence of airflow limitation, nine assessed only the prevalence of chronic bronchitis and four assessed the prevalence of both these parameters. Only one assessed the prevalence of COPD according to its current definition, and this study also provided the prevalence of airflow limitation. Ten studies showed a positive association between farming exposure and airflow limitation or chronic bronchitis, and 12 showed no association (OR (95% CI)=1.77 (1.50 to 2.08), p<0.001). Cattle, swine, poultry and crop farming were associated with either airflow limitation or chronic bronchitis.

Conclusion

Although some features of COPD are associated with some agricultural work, well-designed studies with appropriate diagnostic criteria should be conducted to draw strong conclusions about the relationship between COPD and farming.



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Patterns and trends in OSHA occupational noise exposure measurements from 1979 to 2013

Objectives

Noise is one of the most common exposures, and occupational noise-induced hearing loss (NIHL) is highly prevalent. In addition to NIHL, noise is linked to numerous non-auditory health effects. The Occupational Safety and Health Administration (OSHA) maintains the Integrated Management Information System (IMIS) database of compliance-related measurements performed in various industries across the USA. The goal of the current study was to describe and analyse personal noise measurements available through the OSHA IMIS, identifying industries with elevated personal noise levels or increasing trends in worker exposure over time.

Methods

Through a Freedom of Information Act request, we obtained OSHA’s noise measurements collected and stored in IMIS between 1979 and 2013 and analysed permissible exposure limit (PEL) and action level (AL) criteria measurements by two-digit industry code.

Results

The manufacturing industry represented 87.8% of the 93 920 PEL measurements and 84.6% of the 58 073 AL measurements. The highest mean noise levels were found among the agriculture, forestry, fishing and hunting industry for PEL (93.1 dBA) and the mining, quarrying and oil and gas extraction group for AL (93.3 dBA). Overall, measurements generally showed a decreasing trend in noise levels and exceedances of AL and PEL by year, although this was not true for all industries.

Conclusions

Our results suggest that, despite reductions in noise over time, further noise control interventions are warranted both inside and outside of the manufacturing industry. Further reductions in occupational noise exposures across many industries are necessary to continue to reduce the risk of occupational NIHL.



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IJERPH, Vol. 15, Pages 2673: Exploring Medical Expenditure Clustering and the Determinants of High-Cost Populations from the Family Perspective: A Population-Based Retrospective Study from Rural China

IJERPH, Vol. 15, Pages 2673: Exploring Medical Expenditure Clustering and the Determinants of High-Cost Populations from the Family Perspective: A Population-Based Retrospective Study from Rural China

International Journal of Environmental Research and Public Health doi: 10.3390/ijerph15122673

Authors: Shan Lu Yan Zhang Yadong Niu Liang Zhang

The costliest 5% of the population (identified as the “high-cost” population) accounts for 50% of healthcare spending. Understanding the high-cost population in rural China from the family perspective is essential for health insurers, governments, and families. Using the health insurance database, we tallied 202,482 families that generated medical expenditure in 2014. The Lorentz curve and the Gini coefficient were adopted to describe the medical expenditure clustering, and a logistic regression model was used to identify the determinants of high-cost families. Household medical expenditure showed an extremely uneven distribution, with a Gini coefficient of 0.76. High-cost families spent 54.0% of the total expenditure. The values for family size, average age, and distance from and arrival time to the county hospital of high-cost families were 4.05, 43.18 years, 29.67 km, and 45.09 min, respectively, which differed from the values of the remaining families (3.68, 42.46 years, 30.47 km, and 46.29 min, respectively). More high-cost families live in towns with low-capacity township hospitals and better traffic conditions than the remaining families (28.98% vs. 12.99%, and 71.19% vs. 69.6%, respectively). The logistic regression model indicated that family size, average age, children, time to county hospital, capacity of township hospital, traffic conditions, economic status, healthcare utilizations, and the utilization level were associated with high household medical expenditure. Primary care and health insurance policy should be improved to guide the behaviors of rural residents, reduce their economic burden, and minimize healthcare spending.



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IJERPH, Vol. 15, Pages 2672: Complex Investigation of a Pediatric Haematological Case: Haemophagocytic Syndrome Associated with Visceral Leishmaniasis and Epstein–Barr (EBV) Co-Infection

IJERPH, Vol. 15, Pages 2672: Complex Investigation of a Pediatric Haematological Case: Haemophagocytic Syndrome Associated with Visceral Leishmaniasis and Epstein–Barr (EBV) Co-Infection

International Journal of Environmental Research and Public Health doi: 10.3390/ijerph15122672

Authors: Giorgia Tascini Lucia Lanciotti Lisa Sebastiani Alessandra Paglino Susanna Esposito

Background: Visceral leishmaniasis (VL) is an anthropozoonosis caused by an intracellular parasite belonging to the genus Leishmania. In the Mediterranean region, L. donovani and L. infantum are responsible for VL and dogs are the main reservoir. Haemophagocytic lymphohistiocytosis (HLH) represents a complication of VL and consists of unrestrained activation and proliferation of lymphocytes and macrophages, leading to uncontrolled immune activation. Haemophagocytic lymphohistiocytosis may also develop during viral infection, and Epstein&ndash;Barr virus (EBV) infection is one of the main HLH causes. Macrophage haemophagocytosis in the bone marrow aspirate is pathognomonic. Case presentation: The case involves a 19-month-old male infant presenting with a high persistent fever with a fluctuating pattern, pancytopaenia, hepatosplenomegaly, and a high triglyceride level. Initial investigations showed an EBV infection. Considering the persistent signs and symptoms, bone marrow aspiration was performed and confirmed the suspicion of HLH. In addition, the presence of Leishmania infection was shown. The patient was treated with liposomal amphotericin B and had complete resolution of his symptoms. Conclusion: Diagnosis of VL represents a demanding challenge in endemic and non-endemic areas. Our case demonstrates that leishmaniasis should always be considered in the differential diagnosis in patients presenting with hepatosplenomegaly and cytopaenia with a persistent fever, even in cases of infectious mononucleosis. Moreover, the execution of bone marrow aspiration should not be delayed in order to diagnose and treat at an early stage the potential occurrence of VL, especially if complicated with HLH.



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IJERPH, Vol. 15, Pages 2674: Mineral Composition of Elements in Walnuts and Walnut Oils

IJERPH, Vol. 15, Pages 2674: Mineral Composition of Elements in Walnuts and Walnut Oils

International Journal of Environmental Research and Public Health doi: 10.3390/ijerph15122674

Authors: Iva Juranović Cindrić Michaela Zeiner Dora Hlebec

Walnuts (Juglans nigra) are considered to be a functional food. In the present study, twenty one macro-, micro-, and trace elements (Al, As, B, Ba, Ca, Cd, Co, Cr, Cu, Fe, K, Li, Mg, Mn, Mo, Na, Ni, Pb, Se, Sr, and Zn) were selected to be determined in walnuts and walnut oils. The beneficial content of essential elements could be shown by the obtained results, the macro-elements Ca, K, Mg, and Na being present in nuts with 1062 mg/kg, 2771 mg/kg, 1426 mg/kg, and 42.3 mg/kg, respectively. Regarding micro- and trace elements, the following order (decreasing content) was found: Mn &gt; Fe &gt; Zn &gt; B, Mo &gt; Cu &gt; Ni &gt; Co &gt; Al &gt; Sr &gt; Ba &gt; Li &gt; Pb &gt; Se &gt; Cr &gt; As &gt; Cd. Furthermore, the potentially toxic trace elements (As, Cd, Pb) determined were below the maximum allowed values in most of the investigated walnut samples. A comparison of oils and nuts revealed that the former contain lower concentrations of all elements analyzed except for Fe and Zn. This suggested the origin from contamination during oil processing. Fe influences the oil oxidation rate, thus its entry during production should be avoided.



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IJERPH, Vol. 15, Pages 2670: Effectiveness of a Malaria Surveillance Strategy Based on Active Case Detection during High Transmission Season in the Peruvian Amazon

IJERPH, Vol. 15, Pages 2670: Effectiveness of a Malaria Surveillance Strategy Based on Active Case Detection during High Transmission Season in the Peruvian Amazon

International Journal of Environmental Research and Public Health doi: 10.3390/ijerph15122670

Authors: Diamantina Moreno-Gutierrez Alejandro Llanos-Cuentas José Luis Barboza Juan Contreras-Mancilla Dionicia Gamboa Hugo Rodriguez Gabriel Carrasco-Escobar Raphaël Boreux Marie-Pierre Hayette Philippe Beutels Niko Speybroeck Angel Rosas-Aguirre

Background: Faced with the resurgence of malaria, malaria surveillance in the Peruvian Amazon incorporated consecutive active case detection (ACD) interventions using light microscopy (LM) as reactive measure in communities with an unusual high number of cases during high transmission season (HTS). We assessed the effectiveness in malaria detection of this local ACD-based strategy. Methods: A cohort study was conducted in June&ndash;July 2015 in Mazan, Loreto. Four consecutive ACD interventions at intervals of 10 days were conducted in four riverine communities (Gamitanacocha, Primero de Enero, Libertad and Urco Mira&ntilde;o). In each intervention, all inhabitants were visited at home, and finger-prick blood samples collected for immediate diagnosis by LM and on filter paper for later analysis by quantitative real-time polymerase chain reaction (qPCR). Effectiveness was calculated by dividing the number of malaria infections detected using LM by the number of malaria infections detected by delayed qPCR. Results: Most community inhabitants (88.1%, 822/933) were present in at least one of the four ACD interventions. A total of 451 infections were detected by qPCR in 446 participants (54.3% of total participants); five individuals had two infections. Plasmodium vivax was the predominant species (79.8%), followed by P. falciparum (15.3%) and P. vivax-P. falciparum co-infections (4.9%). Most qPCR-positive infections were asymptomatic (255/448, 56.9%). The ACD-strategy using LM had an effectiveness of 22.8% (detection of 103 of the total qPCR-positive infections). Children aged 5&ndash;14 years, and farming as main economic activity were associated with P. vivax infections. Conclusions: Although the ACD-strategy using LM increased the opportunity of detecting and treating malaria infections during HTS, the number of detected infections was considerably lower than the real burden of infections (those detected by qPCR).



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IJERPH, Vol. 15, Pages 2671: Mental Health among Migrants in Shenzhen, China: Does it Matter Whether the Migrant Population is Identified by Hukou or Birthplace?

IJERPH, Vol. 15, Pages 2671: Mental Health among Migrants in Shenzhen, China: Does it Matter Whether the Migrant Population is Identified by Hukou or Birthplace?

International Journal of Environmental Research and Public Health doi: 10.3390/ijerph15122671

Authors: Min Yang Martin Dijst Marco Helbich

Massive rural&ndash;urban migration in China has drawn attention to the prevalence of mental health problems among migrants. Research on the mental health of Chinese migrants has a narrow focus on rural&ndash;urban migrants, emphasizing the institutional role of hukou in migrant mental health. We argue that the heterogeneity of migrants, including their place of origin and whether they are temporary or permanent migrants, should be taken into account when trying to understand the meaning of migration as an actual movement from one place to another. The data used for this study is from a cross-sectional survey (N = 855) conducted in Shenzhen to compare the differences in migrants&rsquo; mental health that arise when using the two definitions (e.g., hukou and birthplace). Binary logistic regression models were estimated to assess the associations between people&rsquo;s mental health and migration, while controlling for settlement experiences, self-reported physical health, and sociodemographics. The results reveal inconsistent findings across both definitions: general migrants by birthplace were found to be unlikely to have mental problems compared to non-migrants, whereas temporary migrants were at higher risk of mental problems. The study provides important evidence that different migrant groups have different mental health outcomes. The choice of the definition used influences both migrant group selection and the actual linkage between migration and mental health.



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