Journal of Occupational Health and Epidemiology

en Association between Overtime and Sleep Quality, Occupational Fatigue, Depression, Anxiety, and Stress among Industrial Rotational Shift Workers Occupational Health Original Article <div style="text-align: justify;">Background: This study aimed to investigate the effects of overtime on the Pittsburgh Sleep Quality Index (PSQI), Occupational Fatigue Exhaustion Recovery (OFER-15), Depression, Anxiety, and Stress Scale (DASS) among food industry rotational shift workers. Materials and Methods: This descriptive study was conducted among 85 rotating shift workers in an Iranian food industry company. Samples were selected through a census with criteria considered among all 102 workers who were asked to work overtime. A demographic questionnaire, the DASS, the PSQI, and the OFER-15 questionnaire were used to collect information. Shift workers completed the questionnaires before and after overtime. Results: Poor sleep quality and occupational fatigue significantly increased after overtime by 28.3% (chi-square=11.02) and 36.4% (z=-4.71), respectively. In the PSQI subscales, sleep duration increased by 37.6% (z=-4.62), sleep efficiency by 9.5% (z=-2.29), sleep disturbance by 14.1% (z=-3), and the use of sleeping medications by 3.5% (z=-1.89) after the overtime period showing statistically significant increases in the categories of relatively poor and very poor sleep. Furthermore, the subscales of OFER-15 showed that acute fatigue (t=-3.98), chronic fatigue (t=-7.79), and inter-shift recovery (z=-3.47) were statistically more undesirable after overtime. Additionally, in the DASS subscales, participants reported moderate to extremely severe stress by 23.3% (z=-4.521), anxiety by 28.2% (z=-4.47), and depression by 23.5% (z=-4.45), all showing a statistically significant increase after overtime. Conclusion: Overtime work leads to sleep issues, increased reliance on sleeping medications, and higher occupational fatigue among industrial workers on rotational shifts. This ultimately results in greater stress, anxiety, and depression.</div> Shift Work,Industry,Food,Rotation, 199 207 http://johe.rums.ac.ir/browse.php?a_code=A-10-496-9&slc_lang=en&sid=1 Faeze Dehghan Banadaki faezeedehghaan@gmail.com 22400319475328460012073 22400319475328460012073 No M.Sc in Occupational Health Engineering, Dept. of Occupational Health Engineering, Student Research Committee, Faculty of Health, Qazvin University of Medical Sciences, Qazvin, Iran. Qazvin University of Medical Sciences Sakineh Varmazyar svarmazyar@qums.ac.ir 22400319475328460012074 22400319475328460012074 Yes Professor, Dept. of Occupational Health Engineering, Student Research Committee, Social Determinants of Health Research Center and Research Institute for Prevention of Non-Communicable Diseases, Faculty of Health, Qazvin University of Medical Sciences, Qazvin, Iran. Qazvin University of Medical Sciences