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Mediation role of low birth weight on the factors associated with newborn mortality and the moderation role of institutional delivery in the association of low birth weight with newborn mortality in a resource-poor setting

Muhumuza, Rornald ORCID: 0000-0002-9915-1989 (2021) Mediation role of low birth weight on the factors associated with newborn mortality and the moderation role of institutional delivery in the association of low birth weight with newborn mortality in a resource-poor setting. BMJ Open, 11 (5). ISSN 2044-6055

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Identification Number: 10.1136/bmjopen-2020-046322

Abstract

Objectives To assess low birth weight's (LBW) mediation role on the factors associated with newborn mortality (NM), including stillbirth and the role of institutional delivery in the association between LBW and NM. Design and participants I used the 2011-2015 event histories health demographic data collected by Iganga-Mayuge Health Demographic and Surveillance Site (HDSS). The dataset consisted of 10 758 registered women whose birth occurred at least 22 weeks of the gestation period and records of newborns' living status 28 days after delivery. Setting The Iganga-Mayuge HDSS is in Eastern Uganda, which routinely collects health and demographic data from a registered population of at least 100 000 people. Outcome measure The study's key outcomes or endogenous factors were perinatal mortality (PM), late NM and LBW (mediating factor). Results The factors that were directly associated with PM were LBW (OR=2.55, 95% CI 1.15 to 5.67)), maternal age of 30+ years (OR=1.68, 95% CI 1.21 to 2.33), rural residence (OR=1.38, 95% CI 1.02 to 1.85), mothers with previous experience of NM (OR=3.95, 95% CI 2.86 to 5.46) and mothers with no education level (OR=1.63, 95% CI 1.21 to 2.18). Multiple births and mother's prior experience of NM were positively associated with NM at a later age. Institutional delivery had a modest inverse role in the association of LBW with PM. LBW mediated the association of PM with residence status, mothers' previous NM experience, multiple births, adolescent mothers and mothers' marital status. Of the total effect attributable to each of these factors, LBW mediated +25%, +22%, +100%, 25% and-38% of rural resident mothers, mothers with previous experience of newborn or pregnancy loss, multiple births, adolescent mothers and mothers with partners, respectively. Conclusion LBW mediated multiple factors in the NM pathways, and the effect of institutional delivery in reducing mortality among LBW newborns was insignificant. The findings demonstrate the need for a holistic life course approach that gears the health systems to tackle NM.

Item Type: Article
Official URL: https://bmjopen.bmj.com/
Additional Information: © 2021 The Author
Divisions: International Development
LSE Health
Social Policy
Subjects: R Medicine > RJ Pediatrics > RJ101 Child Health. Child health services
R Medicine > RG Gynecology and obstetrics
Date Deposited: 29 Apr 2021 11:30
Last Modified: 20 Aug 2021 01:11
URI: http://eprints.lse.ac.uk/id/eprint/110298

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