Effects of shift work on hypertension among petrochemical production workers / 中国职业医学

ABSTRACT

OBJECTIVE: To assess the effect of shift work on hypertension in petrochemical production workers. METHODS: Totally 2573 workers were recruited from a petrochemical company by convenience sampling method. We collected the basic information of participants via questionnaire and made occupational physical examination in these subjects to evaluate the relationship shift work with hypertension. RESULTS: The results showed that the prevalence of hypertension in the present study was 15. 1%,and the shift workers were with significant higher prevalence compared with the non-shift workers( 15. 9% vs 10. 7%,P < 0. 05). The systolic blood pressure levels were significant higher in shift work group than that in non-shift work group [( 119. 8 ± 14. 9) vs( 116. 6 ± 13. 7) mmHg,P < 0. 01]. After adjusted for age,gender,education,body mass index,family history of hypertension,and other confounding factors,multiple logistic regression analysis showed that the risk of hypertension in shift work group was 1. 49 times( 95% confidence interval was 1. 05-2. 12)than that of non-shift work group( P < 0. 05). By using stratified analysis by the duration of shift work in the shift workers,the risk of hypertension in the duration of 10-year and 20-year groups were higher than that of the duration less than 10-year group( P < 0. 05). CONCLUSION: Shift work exposure increases the prevalence of hypertension by affecting systolic blood pressure,and this risk can be enhanced with increasing duration of shift work.