Survival Analysis of Infant Mortality in Ethiopia

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Addis Ababa University


Mortality is one of the components of population change. Infant and child mOl1ality are among the best indicators of health development and socioeconomic status. Because a society's life expectancy at birth is determined by the survival chances of infants and children. That is why reduction of infant and child mortality is a worldwide target and one of the most important key indicators of the Millennium Development Goals (MDGs). Hence its indication is very important for evaluation and public health strategy. The objective of this study was to examine the impact of maternal, socio economic and sanitation variables on infant and child mortality in Ethiopia and identify which of these factors had a pronounced impact for the reduction of infant and child mortality. The data in this study were obtained fi'om the 2011 Ethiopia Demographic and Health survey (EDI-IS, 2011) conducted by the Central Statistical Agency (CSA). To analyze the data descriptive statistics, univariate and multi variable analyses were used. The descriptive analysis indicates that a death proportion is lower for females (20.6%) than for males (24.85%). Kaplan-Meier survival curves and log-Rank test were used to compare the survival experience of different groups. Cox's regression model was employed to identify the covariates that had a statistical significant effect on the survival time of infants. The estimation of the model parameters was done by partial maximum likelihood procedures. Mothers' educational level, birth order, sex and types of birth were identified as the risk factors for the death of infants. Furthermore it was found that the survival probabilities of infants with multiple birth, first birth order, non educated mothers and male children were low.



analysis of infant mortality in Ethiopia