Penerapan Metode Forward dan Backward untuk Menentukan Faktor yang Mempengaruhi Angka harapan hidup di Kabupaten Tapanuli Selatan

Abstract

Life expectancy is an indicator used to assess health status. To increase life expectancy, of course, cannot be separated from various factors. To find out what factors significantly affect life expectancy, the authors use forward and backward methods. The purpose of this method is to reduce one by one the estimator variables that do not have a significant effect on the response variables until the desired estimator equation is obtained. The estimating equation obtained is ̂ = 64,186 + 0,020X1 – 0,129X2 + 0,036X5, where is the percentage of households with the largest non-earth/wood floors, is the percentage of residents who have health complaints during the last month and is the percentage of households with the widest walls being walls. The magnitude of the variation described by the estimator is 98.28%, so it can be concluded that the estimator model obtained is good enough to be used as an estimator of life expectancy in South Tapanuli Regency.