Paradis G, Theriault G, Tremblay C
Department of Community Health, Montreal General Hospital, P.Q., Canada.
Int J Epidemiol. 1989 Jun;18(2):397-402. doi: 10.1093/ije/18.2.397.
In an attempt to address previously reported excesses of ischaemic heart disease (IHD), lung cancer and bladder cancer among professional drivers, the mortality (SMR) of 2134 Montreal city bus drivers employed for at least five years as of January 1962 and followed until 31 December 1985 was compared with that of the male population of greater Montreal. The vital status of 94% of the cohort was ascertained. The number of deaths observed was 804. The overall mortality was somewhat lower than expected (SMR = 97). A small, non-significant excess mortality was found for ischaemic heart disease (IHD) (O/E = 313/295, SMR = 106, 95% CI: 95-118) and circulatory system diseases (O/E = 441/405, SMR = 109, 95% CI: 99-119). However, no excesses were observed for lung cancer (O/E = 78/84.4, SMR = 92, 95% CI: 73-114) or bladder cancer (O/E = 4/7.4, SMR = 54, 95% CI: 15-138). These results are compatible with other studies which have found a small risk of IHD for bus drivers.
为了应对先前报告的职业司机中缺血性心脏病（IHD）、肺癌和膀胱癌发病率过高的问题，将截至1962年1月受雇至少五年并随访至1985年12月31日的2134名蒙特利尔市公交车司机的死亡率（标准化死亡比，SMR）与大蒙特利尔地区男性人口的死亡率进行了比较。确定了该队列中94%的生命状态。观察到的死亡人数为804人。总体死亡率略低于预期（SMR = 97）。缺血性心脏病（IHD）（观察值/预期值 = 313/295，SMR = 106，95%可信区间：95 - 118）和循环系统疾病（观察值/预期值 = 441/405，SMR = 109，95%可信区间：99 - 119）的死亡率略有升高，但差异无统计学意义。然而，肺癌（观察值/预期值 = 78/84.4，SMR = 92，95%可信区间：73 - 114）和膀胱癌（观察值/预期值 = 4/7.4，SMR = 54，95%可信区间：15 - 138）的死亡率并未升高。这些结果与其他研究一致，其他研究发现公交车司机患缺血性心脏病的风险较小。
