Vinni K, Hakama M
Br J Ind Med. 1980 May;37(2):180-4. doi: 10.1136/oem.37.2.180.
The selection due to the "healthy worker effect" was estimated from a random sample of the total Finnish population. The sample of 20 000 people was followed for changes in occupations from 1960 to 1970 and for deaths in 1971-5. Those entering the active work force had a standard mortality ratio of 70, indicating a healthy population selection effect. Those staying in the same occupational category from 1960 to 1970 had a 20% lower mortality than those who did not. This survivor population effect was due to changes to another occupational group and to early retirement. These factors had an inverse effect on the survival history of an occupational group.
基于芬兰全体人口的随机样本估算了“健康工人效应”导致的选择情况。对20000人的样本在1960年至1970年期间的职业变化以及1971年至1975年期间的死亡情况进行了跟踪。进入活跃劳动力队伍的人标准化死亡率为70,表明存在健康人群选择效应。1960年至1970年期间职业类别保持不变的人死亡率比未保持不变的人低20%。这种幸存者群体效应是由于转到另一个职业群体以及提前退休所致。这些因素对一个职业群体的生存史产生了相反的影响。