Robert N. Grosse|Barbara H. Perry
Correlates of life expectancy in less developed countries
University of Michigan–Ann Arbor|University of Michigan–Ann Arbor
analyses performed investigate several hypotheses concerning multiple determinants levels life expectancy developing countries recent decades possible explanation observed variations amount gain life expectancy 1950s 1970s findings significant level life expectancy results present work conform large results scholars area although present work unique developing countries included 1960s 1970s shift relative importance economic indicators general social indicators favor social indicators period 19601965 70 variation levels life expectancy associated per capita income literacy rates ratio three two favor economic variable 19701975 ratio become six one favor literacy addition multivariate model showed sanitation variables began appear significant correlates levels life expectancy recent time period playing larger role level income per capita work pursued part separate concurrent project explored explicitly threeway interaction literacy life expectancy sanitation change life expectancy 1950 1970 associations quite different per capita income associated absolute change life expectancy associations literacy much smaller earlier observed level life expectancy point time multivariate model primary correlates change sanitation variables health personnel represented population per midwife tests associations variations amount gain life expectancy found literature comparison findings therefore made directly present work suggests may lower skill levels health manpower activities sanitation main correlates multivariate model absolute change life expectancy