预期寿命影响因素分析法——通径分析

The Method of Analyzing Factors Affecting Life Expectancy——Path Anarysis

本文用通径分析影响预期寿命的因素。提出影响预期寿命的直接因素依次为婴儿死亡率,识字率、人均工农产值及卫技人员数,间接影响因素有城镇人口比、人均工农产值、识字率及卫技人员数。并从各变量间通径系数的大小,可以定量地分析出主要因素对预期寿命的影响程度。

This study apply path analysis to analyze the factors affecting life expectancy. The results indicated that the direct factors are infant mortality rates(‰), the literacy rate of pepole older than 12-year(％), per capital income in the year(yuan/man), physicians/10,000 population and indirect factors are urban population(％), per capital income in the year(yuan/man), the literacy rate of people older than 12-year(％), physicians/10,000 population,and then quantitatively analyzed every factor's influence degree by the means of calculate the coefficient between factors.