论文标题
生命表和预期寿命计算的新方法
A new method for life table and life expectancy calculation
论文作者
论文摘要
现有的生命表方法首先需要计算特定年龄的死亡率，不仅具有太多且复杂的计算步骤，而且还引入了多个近似值以带来错误。本文重新定义了生命表的死亡可能性，因为一群人以后出生的一群人死亡的平均可能性。基于此定义，提出了一种新的生命表来获得预期寿命，从传统生命表中具有相同的含义。使用日本人群数据验证该方法，结果表明，它与婴儿出生的预期寿命一致，最大相对差异不超过0.1％，平均相对差异小于0.03％。本文描述的生命表的理论和方法简单易懂。所需的数据易于从统计数据中获得，并且计算很容易，获得的结果是准确且可靠的。它应该是一种非常有价值的人口统计方法。
The existing life table method needs to calculate the age-specific mortality first, not only has too many and complicated calculation steps, but also introduces the multiple approximation to bring error. This paper redefines the probability of death for the life table as the average probability of death of a group of people born in a certain period at a later time. Based on this definition, a new method for the life table is proposed to obtain the life expectancy, which has the same meaning to that from the traditional life table. Using the Japanese population data to verify the method, the results show that it is consistent with the life expectancy of the birth of the baby, the maximum relative difference is no more than 0.1%, and average relative difference is less than 0.03%. The theory and method of life table described in this paper are simple and easy to understand. The needed data are easy to obtained from statistics, and the calculation is easy, the results obtained are accurate and reliable. It should be a very valuable demographic method for application.
