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vol.74 issue4SOBREVIDA DE NEONATOS DE EXTREMO BAJO PESO AL NACER EN UNA REGIÓN DEL SUR DE CHILETRATAMIENTO POR FETOSCOPIA DEL SÍNDROME DE TRANSFUSIÓN FETO FETAL EN CLÍNICA ALEMANA DE SANTIAGO author indexsubject indexarticles search
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Revista chilena de obstetricia y ginecología

Print version ISSN 0048-766XOn-line version ISSN 0717-7526

Abstract

DE LA CALLE FM, María et al. SOBREPESO Y OBESIDAD PREGESTACIONAL COMO FACTOR DE RIESGO DE CESÁREA Y COMPLICACIONES PERINATALES. Rev. chil. obstet. ginecol. [online]. 2009, vol.74, n.4, pp.233-238. ISSN 0048-766X.  http://dx.doi.org/10.4067/S0717-75262009000400005.

Objective: The objective of this study is to determine if the maternal prepregnancy overweight and obesity are related to risk of cesarean delivery and other obstetrical complications. Methods: Transversal study of 1223 nulliparous women that delivered in our maternity between August 2007 and April 2008. Women were categorized by the body mass index (BMI): 482 normal weight (BMI: 18.5-24.9 Kg/m2), 419 overweight (BMI: 25-29.9 Kg/m2) and 322 obesity (BMI: >30 Kg/m2). Obstetrical complications, labor and its complications, and neonatal weight were studied. Results: Women who were overweight was nearly twice as likely to deliver by cesarean section as women with normal weight (OR: 1.8; 95%CI 1.4-2.9). Obese women experienced a three-fold increase in risk of cesarean section in comparison to normal weight women (OR: 3.02; 95%CI 2.6-4.5). Number of labor inductions was higher in overweight and obese group (OR: 1.6; 95%CI 1.3-1.9) and (OR: 2.1; 95%CI 1.7-2.9) respectively in comparison to control group. The highest risk of fetal macrosomia (weight >4000 g) was in the overweight (OR: 1.5; 95%CI 1.4-2.2) and obese women (OR: 1.9; 95%CI 1.3-2.8) compared with the normal weight women. In multivariate logistic regression analysis, the association persisted between obesity and cesarean delivery (OR 3.0; 95%CI 2.6-3.8) and among overweight and cesarean section (OR 2.1; 95%CI 1.7-2.7) after adjusting for variables such as age, diabetes and hypertension. Conclusions: Overweight or obesity prior to pregnancy are associated with an increased risk of cesarean delivery and labor inductions. This risk increases as the BMI increases.

Keywords : Obesity; overweight status; pregnancy; cesarean delivery; induction of labour.

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