4.6 Review

Maternal Obesity as a Risk Factor for Caesarean Delivery in Sub-Saharan Africa: A Systematic Review

Journal

LIFE-BASEL
Volume 12, Issue 6, Pages -

Publisher

MDPI
DOI: 10.3390/life12060906

Keywords

pregnancy; maternal obesity; caesarean delivery; sub-Saharan Africa; systematic review

Funding

  1. University of Sheffield

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In sub-Saharan Africa, maternal obesity is a risk factor for caesarean delivery. The risk of caesarean delivery increases with increasing BMI. Further meta-analyses and patho-mechanistic studies are needed to confirm the causal association. Culturally appropriate weight management and nutritional interventions should be implemented to reduce the incidence of obesity-induced caesarean delivery in sub-Saharan Africa.
Background: Maternal obesity is associated with several adverse reproductive outcomes. It is a growing public health burden in sub-Saharan Africa, a region with low resources and capacity to care for the large, affected population. Objectives: To assess the evidence of maternal obesity as a risk factor for caesarean delivery in women in sub-Saharan Africa. Methods: A systematic review of relevant original articles using PubMed, MEDLINE, and CINAHL was performed. Google Scholar and the reference lists of relevant systematic reviews and meta-analyses were also searched for other eligible studies. Observational studies assessing maternal body mass index (BMI) >= 30 kg/m(2) before or during gestation and caesarean delivery as birth outcome were included. Results: All 17 studies were published between 2009 and 2021 and included 227,675 (236-153,102) participants. The prevalence of maternal obesity ranged from 3.9 to 44%. All except two studies (88%) indicated an association of obesity and risk of caesarean delivery in pregnant women in sub-Saharan Africa. Overweight/obese women had up to 4-fold increased risk of caesarean delivery compared to normal weight women. Three studies also reported a direct relationship between morbid obesity and prevalence of caesarean delivery in the sub-region. The risk of caesarean delivery appears to increase with increasing BMI e.g., >5 times in women with BMI >= 40 kg/m(2) than in normal weight women. Conclusions: In sub-Saharan Africa, increased BMI in pregnancy is a risk factor for subsequent caesarean delivery. The risk of caesarean delivery appears to increase with increasing BMI. A robust meta-analysis and other patho-mechanistic studies can be conducted to confirm causal association. Culturally appropriate weight management and nutritional interventions should be implemented to reduce the incidence of obesity-induced caesarean delivery in sub-Saharan Africa.

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