Survival Analysis of Under-Five Twins in Ethiopia: a Gamma Frailty Modeling Approach
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Date
2013-06
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Addis Ababa University
Abstract
Twins are relatively rare events, but several studies confirm that they contribute substantially to
mortality in both neonatal and post-neonatal periods. The excess infant and child mortality rates
among twins calls for a need to identify the main causes behind it. This study intended to identify
ri sk factors that are significantly associated with survival of under-five twins in Ethiopia. Data
about twin under-five mortality was found from the birth hi story of women who were included in
the 2011 Ethiopia Demographic and Health survey. This study, therefore, employed bivariate
survival analysis approach using gamma frailty models. The results of the study showed that
place of residence, preceding birth interval, birth order, and previous child status were
significantly assoc iated with under-five twin mortality.
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Survival Analysis of Under-Five Twins in Ethiopia