Pregestational body mass index and risk of maternal adverse events
DOI:
https://doi.org/10.24875/RMIMSS.M20000026Keywords:
Body Mass Index, Risk Factors, Obesity, Maternal, Pregnancy Complications, Adverse Maternal EventAbstract
Background: In women of reproductive age, pregestational overweight and/or obesity could result in negative outcomes for both, mother and child.
Objective: To investigate the association between pregestational body mass index (PBMI) and maternal adverse outcomes (MAO) during childbirth, in women assisted during 2014, in a public hospital in Mérida, Yucatán, Mexico.
Material and methods: 427 pregnant women assisted during childbirth were consecutively included, identifying among them those who did not have any MAO (n = 137), whose demographic and clinical data, including PBMI, were compared with those who did have at least one MAO (n = 290). Odds ratios (OR) and 95% confidence intervals (95% CI) were obtained using a binary logistic regression model (LRM).
Results: 33% had normal PBMI, and 37% had obesity. Urgent cesarean section was the most frequent MAO (58.8%). According to the LRM, schooling (secondary school level, OR: 0.56; 95% CI: 0.34-0.94), primigravidae ( OR: 6.88; 95% CI: 3.37-12.58), and secondigravidae women (OR: 5.57; 95% CI: 3.04-10.24), the number of prenatal visits (≥ 5, OR: 3.49; 95% CI: 1.54-7.91), and PBMI (overweight, OR: 0.41: 95% CI: 0.23-0.72) were identified as clinically and statistically significant.
Conclusions: Women with overweight were at low risk for MAO, while schooling (secondary school level) reduced risk by 44%, being a primigravidae or a secondigravidae increased risk more than 6 and 5 times, respectively. Paradoxically, prenatal visits (≥ 5 medical visits) increased risk more than 3 times.
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