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Global health
Research
Risk factors for postneonatal, infant, child and under-5 mortality in Nigeria: a pooled cross-sectional analysis
  1. Osita Kingsley Ezeh1,
  2. Kingsley Emwinyore Agho2,
  3. Michael John Dibley3,
  4. John Joseph Hall4,
  5. Andrew Nicolas Page2
  1. 1School of Medicine, University of Western Sydney, Campbelltown, New South Wales, Australia
  2. 2School of Science and Health, University of Western Sydney, Campbelltown, New South Wales, Australia
  3. 3Sydney School of Public Health, University of Sydney, Sydney, Australia
  4. 4Faculty of Health, School of Medicine and Public Health, University of Newcastle, Callaghan, New South Wales, Australia
  1. Correspondence to Osita Kingsley Ezeh; ezehosita{at}yahoo.com

Abstract

Objectives To identify common factors associated with post-neonatal, infant, child and under-5 mortality in Nigeria.

Design, setting and participants A cross-sectional data of three Nigeria Demographic and Health Surveys (NDHS) for the years 2003, 2008 and 2013 were used. A multistage, stratified, cluster random sampling method was used to gather information on 63 844 singleton live-born infants of the most recent birth of a mother within a 5-year period before each survey was examined using cox regression models.

Main outcome measures Postneonatal mortality (death between 1 and 11 months), infant mortality (death between birth and 11 months), child mortality (death between 12 and 59 months) and under-5 mortality (death between birth and 59 months).

Results Multivariable analyses indicated that children born to mothers with no formal education was significantly associated with mortality across all four age ranges (adjusted HR=1.30, 95% CI 1.01 to 1.66 for postneonatal; HR=1.38, 95% CI 1.11 to 1.84 for infant; HR=2.13, 95% CI 1.56 to 2.89 for child; HR=1.19, 95% CI 1.02 to 1.41 for under-5). Other significant factors included living in rural areas (HR=1.48, 95% CI 1.16 to 1.89 for postneonatal; HR=1.23, 95% CI 1.03 to 1.47 for infant; HR=1.52, 95% CI 1.16 to 1.99 for child; HR=1.29, 95% CI 1.11 to 1.50 for under-5), and poor households (HR=2.47, 95% CI 1.76 to 3.47 for postneonatal; HR=1.40, 95% CI 1.10 to 1.78 for infant; HR=1.72, 95% CI 1.19 to 2.49 for child; HR=1.43, 95% CI 1.17 to 1.76 for under-5).

Conclusions This study found that no formal education, poor households and living in rural areas increased the risk of postneonatal, infant, child and under-5 mortality among Nigerian children. Community-based interventions for reducing under-5 deaths are needed and should target children born to mothers of low socioeconomic status.

  • mortality
  • post-neonatal
  • infant
  • child
  • under-five
  • Nigeria

This is an Open Access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/

https://doi.org/10.1136/bmjopen-2014-006779

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