In some lessdeveloped countries, life expectancy at birth may be lower than life expectancy at age 1, because of high infant mortality rates (commonly due to infectious disease or lack of access to a clean water supply) Life expectancy is calculated by constructing a life table A life table incorporates data on agespecific death rates for the population in question, which requiresBackground Healthy life expectancy (HALE) at birth is an important indicator of health status and quality of life of a country's population However, little is known about the determinants of HALE as yet globally or even countryspecific level Thus, we examined the factors that are associated with HALE at birth in low and lowermiddleincome countriesLIFE EXPECTANCY meaning & explanationLife expectancy is a s
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