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Revista Peruana de Ginecología y Obstetricia

On-line version ISSN 2304-5132


RONDON-TAPIA, Martha et al. Pregestational obesity and birth alterations. Rev. peru. ginecol. obstet. [online]. 2023, vol.69, n.2, 00003.  Epub July 06, 2023. ISSN 2304-5132.


: To establish the association between pregestational obesity and the risk of birth alterations. Design: Retrospective cohort study. Institution: Hospital Central "Dr. Urquinaona", Maracaibo, Venezuela.


: Obstetric outcome of patients according to pregestational mass index -obese (group A), overweight (group B), and normal weight (group C)- attended between January and December 2021. Main study measures: Duration of pregnancy and duration, type and alterations of delivery.


: A total of 2,250 deliveries were attended during the study period, of which 226 pregnant women were selected for analysis. The majority of the pregnant women (60.5%) were assigned to group A, 47 (20.8%) to group B, and 41 (17.5%) to group C. Pregnant women in group A had a higher probability of cesarean section (odds ratio (OR) 1.76; 95% confidence interval (95%CI), 1.03 - 2.98), prolonged labor (OR 2.09; 95%CI, 1.23 - 3.53) and prolonged pregnancy (OR 2.30; 95%CI, 1.32 - 4.01) compared to pregnant women in group C. The pregnant women in group B did not show statistically significant differences in the frequency of obstetric variables compared to the pregnant women in group C (p = ns).


: There was a significant association between pregestational obesity and the risk of birth alterations.

Keywords : Body mass index; Maternal obesity; Obstetric labor complications.

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