African Journal of Applied Statistics

Unobserved Heterogeneity in Determinants of Under-five Mortality in Nigeria: Frailty Modeling in Survival Analysis

Adeniyi Francis FAGBAMIGBE, Rotimi Felix AFOLABI, Kofoworola Yussuf ALADE, Ayo Stephen ADEBOWALE, and Bidemi Oyindamola YUSUF

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Childhood mortality is one of the measure of socio-economic status of a population. Several studies have been conducted to identify determinants of childhood mortality but the random effect and heterogeneity nature in most clustered survey data has not been well documented. The present study was designed to use shared frailty model to assess determinants of Under-Five Mortality (U5M) using an hierarchical data in Nigeria.


La mortalité infantile est l’une des mesures du statut socioéconomique d’une population. Plusieurs études ont été menées pour identifier les déterminants de la mortalité infantile, mais la nature de l'effet aléatoire et de l'hétérogénéité dans la plupart des données d'enquêtes en grappes n'a pas été bien documentée. La présente étude a été conçue pour utiliser un modèle de fragilité partagée afin d'évaluer les déterminants de la mortalité des moins de cinq ans (U5M) à l'aide de données hiérarchiques au Nigéria.

Article information

Afr. J. Appl. Stat., Volume 6, Number 1 (2019), 565-587.

First available in Project Euclid: 17 May 2019

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Digital Object Identifier

Primary: 00A22: Formularies 62-07: Data analysis 62N01: Censored data models

shared frailty model Under-Five Mortality individual factors community factors clustered survey data


FAGBAMIGBE, Adeniyi Francis; AFOLABI, Rotimi Felix; ALADE, Kofoworola Yussuf; ADEBOWALE, Ayo Stephen; YUSUF, Bidemi Oyindamola. Unobserved Heterogeneity in Determinants of Under-five Mortality in Nigeria: Frailty Modeling in Survival Analysis. Afr. J. Appl. Stat. 6 (2019), no. 1, 565--587. doi:10.16929/ajas/2019.565.231.

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