Employing the Empirical Function and the Kaplan-Meier Method to Estimate the Survival Function for Grouped Complete Data for the Iraqi Population

Abstract

Population censuses suffer from different behavior in data, especially those classified according to age groups. Due to the scarcity of research and special studies on survival analysis of grouped complete data, the empirical method and the Kaplan-Meier method with a developed method of the Kaplan-Meier formula were employed in estimating the survival function for the grouped complete data. It was using the data of population censuses for 1997 as a base year, Due to the lack of subsequent population censuses we relied on population projection tables for the period (2017-2022) in analyzing survival behavior during this period.

Accordingly, the results were explained through tables and figures, analyzing and interpreting the behavior and survival functions of the three methods by age groups and according to gender and the total population, which showed that the developed method has an effect the estimator by the rank of the age group.