Adlakha A L, Hall T L, Muller S
World Health Stat Q. 1979;32(2):138-53.
A comparison was made between the indirect method of preparing a profession-specific working-life table and the direct method. The former uses data on the number of physicians per 1,000 population by age and assumes that the mortality rate for the profession is equal to that of the population as a whole. The latter method makes use of information on profession-specific mortality and on active and inactive status of living physicians. These two approaches were applied to physician data for the United States of America and it was noted that the direct method gives estimates of working life and total life expectancy that are significantly higher than by use of the indirect method. The likely magnitude and directions of the biases inherent in each of the methods are then discussed. A comparison is then made of the estimated working life for Colombian, French and US physicians using the indirect method.
对编制特定专业工作寿命表的间接方法和直接方法进行了比较。前者使用按年龄划分的每千人口中医生数量的数据，并假设该专业的死亡率与总体人口的死亡率相等。后一种方法利用特定专业死亡率以及在职和非在职医生的信息。这两种方法应用于美利坚合众国的医生数据，结果发现直接方法得出的工作寿命和总预期寿命估计值明显高于使用间接方法得出的结果。然后讨论了每种方法中固有偏差的可能大小和方向。接着使用间接方法对哥伦比亚、法国和美国医生的估计工作寿命进行了比较。
