Meloni M, Marchi R, Broi M, Avataneo G, Sanna Randaccio F
Dipartimento di Sanità Pubblica, Sezione di Medicina del Lavoro, Università di Cagliari.
G Ital Med Lav Ergon. 2003 Jul-Sep;25 Suppl(3):273-4.
In order to assess the prevalence of cardiovascular abnormalities among shift workers, who were free from such abnormalities at the time of hiring, compared to day workers and ex-shift workers, we studied the QTc interval and several cardiovascular risk factors in 61 chemical workers, including 40 shift workers, 11 day workers, and 10 ex-shift workers. We found a high prevalence rate of ischemic heart disease and conduction abnormalities among ex-shift workers (5/10, 50%). We did not observe variations in the QTc interval among the three groups. The occurrence of cardiovascular disease is a reason for moving workers to day work. Therefore, the shift workers group in our study might have been selected among subjects with a healthier lifestyle preventing side effects on their cardiovascular system.
为了评估与日班工人和曾经的轮班工人相比，那些在入职时无心血管异常的轮班工人中心血管异常的患病率，我们研究了61名化工工人的QTc间期和几种心血管危险因素，其中包括40名轮班工人、11名日班工人和10名曾经的轮班工人。我们发现曾经的轮班工人中缺血性心脏病和传导异常的患病率很高（5/10，50%）。我们未观察到三组之间QTc间期存在差异。心血管疾病的发生是工人转做日班工作的一个原因。因此，我们研究中的轮班工人群体可能是从具有更健康生活方式、可预防对其心血管系统产生副作用的受试者中挑选出来的。
