Baxter P J, White W G, Barnes G M, Cashman P M
Br J Ind Med. 1978 May;35(2):99-103. doi: 10.1136/oem.35.2.99.
A previous study in a car assembly plant showed that production-line workers had a lower incidence rate of heart attacks than executive staff. In the present study some major coronary risk factors and 24-hour ambulatory electrocardiograms were investigated in two age-matched samples of 30 middle-aged men drawn from these occupations. Men with a known history of heart disease were excluded. Compared with production-line workers, executive staff on average had a higher diastolic blood pressure (P less than 0.05) and fewer took heavy exercise during their leisure time (P less than 0.05). Ventricular premature beats (VPB was also similar for each of the periods of work, leisure and sleep. Apart from isolated ectopic beats, disturbances of rhythm were uncommon, and neither VPB nor other arrhythmias appeared to be induced by occupational factors.
先前在一家汽车装配厂进行的一项研究表明，生产线工人心脏病发作的发病率低于管理人员。在本研究中，从这些职业中选取了两个年龄匹配的30名中年男性样本，对一些主要的冠状动脉危险因素和24小时动态心电图进行了调查。排除有心脏病史的男性。与生产线工人相比，管理人员平均舒张压较高（P<0.05），且在休闲时间进行剧烈运动的人较少（P<0.05）。在工作、休闲和睡眠的各个时间段，室性早搏（VPB）情况也相似。除了孤立的异位搏动外，节律紊乱并不常见，而且室性早搏和其他心律失常似乎都不是由职业因素诱发的。
