The evaluation of educational and economic effects on life expectation by linear regression analysis

Socioeconomic effects are supposed to have a fairly long time delay in regard to health development. Taking into consideration time lags, correlation and regression analysis are executed to explain the difference in health levels which exist among countries. The infant mortality rate, life expectation at birth, adult literacy rate, proportions of school enrolment and GNP per capita are taken as variables and their characteristics are discussed. In addition, countries are divided into three groups, i.e., low income, middle income and industrialized countries, to show that the educational and economic effects on health development vary according to the economic level of the countries.