Construction of Life Table and Some Mathematical Models for Male Population of Bangladesh

摘要

The purpose of the present study is to estimate male adult mortality by Widowhood Method using the secondary data for female marital status of Bangladesh. The male life table has been constructed from the number of persons surviving at an exact age x (l_(x)) values obtained for linking male infant mortality as well as male adult mortality. Age specific death rates (ASDRs), crude death rate (CDR) and crude birth rate (CBR) for male has been estimated. Moreover, an effort has also been given concentration to fit some mathematical models to age structure, ASDRs and l_(x) values for male population. Model validation technique, cross validity prediction power (CVPP), is applied to those mathematical models to test out either they are suitable or not. It is seen that the life expectancy at birth and CDR for male in 1961 are 43.43 and 21.80 respectively. And ASDRs show traditional U shape pattern. It is found that age distribution of population follows modified negative exponential model containing three parameters. And, ASDRs and the l_(x) values follow 4~(th) degree polynomial model. Moreover, it is investigated that the stability of R~(2)~()of these models is more than 95%.