Author response: Coronary artery atherosclerosis associated with shift work in chemical plant workers by using coronary CT angiography

We deeply appreciate the comments and suggestions from Rahman Shiri, MD, PhD.

In South Korea, general health check-ups are performed by companies according to their labour management agreement. In this study, coronary artery CT angiography (CCTA) was the investigation specified by the labour management agreement. Prior to the test, the participants in this study were interviewed by a clinician. If the participants had any cardiovascular symptoms or a history of cardiovascular disease, they were transferred to specialist cardiology care and excluded from CCTA. Furthermore, the general population in South Korea can undergo self-referred CCTA evaluation as a general health examination regardless of having a clinical indication.1

We accept the fact that the study sample was small because of the limitation of using CCTA. Dr Rahman Shiri suggested that the crude OR should attenuate after adjustment for waist circumference, low-density lipoprotein-cholesterol, smoking, alcohol consumption and diabetes. Generally,...

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