Analysis On The Influencing Factor And Prediction Of Life Expectancy

Life expectancy is a very important indicator.It can comprehensively reflect the level of social and economic development and the level of population death.Our country also has made life expectancy be an important anticipated indicator in the 12 th five-year plan and the 13 th five-year plan,and made improving the life expectancy as an important development goal.the prospective of the increase in life expectancy as important development goals.In order to find some ways to improve life expectancy and provide theoretical foundation for relevant departments to formulate policy,this article analyzes the factors that affect the population life expectancy,determine the degree of impact of the various factors on life expectancy.At the same time,the life expectancy is forecasted,and the change tendency is discussed.Factor analysis is used in the process of paper to analyze the factors' impact on life expectancy to find the comprehensive factors.And then put these factors as independent variable with multiple regression analysis to determine the influence degree of various impact factors to life expectancy.Finally,combine with the grey forecasting method to predict life expectancy.The result of factors affecting shows that the impact on life expectancy of the factor of economic development and science-education-culture-health is most significant,the impact on life expectancy of the factor of the environmental factors is minimal.Based on those results,this article put forward some related suggestions for improving life expectancy: develop the economy,reducing the differences between regions;increase the intensity of fiscal expenditure to improve the development of science-education-culture-health career;improve people's living standards;strengthen environmental protection to develop the economy scientifically.In addition,the prediction results of the life expectancy show that our country's life expectancy will continue to maintain growth trend.