Изследване на повъзрастовата смъртност чрез функцията на доживяване
AGE-SPECIFIC MORTALITY ANALYSIS BY THE SURVIVING FUNCTION

Summary/Abstract: A technique for age-specific mortality analysis using the surviving function is proposed. We locate some points of demographic importance on the curve of surviving by using the numbers of left alive to different ages and calculate finite differences from them. To facilitate the interpretation of the results, we have applied numerical interpretation of some functional relations between life table variables. The method has been applied to the case of Bulgaria: we have studied the trends in surviving and age-specific mortality for women and men in this country for a long period of time (from the middle of last century until present). In Bulgaria, more and more women survive to late adult ages from the beginning of this century. Unlike tendency exists among Bulgarian men – less and less of them survive to late adult ages from the 1980s. It is in contradiction with the situation in the contemporary developed world.

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