Maternal demographic and antenatal factors, low birth weight and preterm birth: findings from the mother and child in th
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(2020) 20:628
RESEARCH ARTICLE
Open Access
Maternal demographic and antenatal factors, low birth weight and preterm birth: findings from the mother and child in the environment (MACE) birth cohort, Durban, South Africa Prakash M. Jeena1, Kareshma Asharam2, Aweke A. Mitku2, Pragalathan Naidoo3 and Rajen N. Naidoo2*
Abstract Background: Low birthweight (LBW) and preterm birth (PB) remain the leading cause of morbidity and mortality in neonates worldwide. The aim of this study was to identify maternal demographic and antenatal factors associated with PB and LBW among low socio-economic communities. Methods: Pregnant women (n = 1099) were recruited in the first trimester into the Mother and Child in the Environment (MACE) birth cohort in Durban, South Africa. Maternal factors such as demographic information, health status, residential area, occupational, personal and environmental smoking and biomass fuel use were obtained through standardised interviews, while clinical status was obtained in each trimester and antenatal information on HIV status and treatment, syphilis and conditions such as pregnancy induced hypertension, diabetes etc. was extracted from the antenatal assessments. Key outcomes of interest were preterm birth and low birthweight. The latter data was obtained from the clinical assessments performed by midwives at delivery. Logistic regression models identified factors associated with PB and LBW. Results: Of the 760 live births, 16.4 and 13.5% were preterm and LBW, respectively. Mothers who delivered by caesarean section had an increased odds of having LBW babies (Adjusted odds ratio (AOR): 1.7; 95% CI: 1.1–2.7) and PB (AOR: 1.7, 95% CI: 1.1–2.7) versus normal vaginal deliveries. Mothers > 30 years (AOR: 1.8, 95% CI: 1.1–2.9) and current smokers (AOR: 2.7, 95% CI: 1.3–5.8) had an increased odds of having PB babies. Compared to younger mothers and non-smokers respectively. An effect of PB and LBW was seen among mothers with high BMI (25.0– 29.9 kg/m2) (PB: AOR: 0.5, 95% CI: 0.3–0.9 and LBW: AOR: 0.5, 0.5, CI: 0.3–0.8), and obese BMI (> 30 kg/m2) (PB: AOR: 0.5, 95% CI: 0.3–0.9 and LBW: AOR: 0.4, CI: 0.2–0.7). Maternal HIV (PB AOR: 1.4 and LBW AOR: 1.2) and history of sexually transmitted infections (PB AOR: 2.7 and LBW AOR: 4.2) were not statistically significant. (Continued on next page)
* Correspondence: [email protected] 2 Discipline of Occupational and Environmental Health, School of Nursing and Public Health, Howard College Campus, University of KwaZulu-Natal, Room 321, George Campbell Building, Durban 4041, South Africa Full list of author information is available at the end of the article © The Author(s). 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third part
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