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Maternal pre-pregnancy overweight and obesity and the risk of cesarean delivery in nulliparous women.
Ann Epidemiol. 2005 Aug; 15(7):467-74.AE

Abstract

PURPOSE

To examine the effect of maternal pre-pregnancy overweight and obesity on the risk of term cesarean delivery in nulliparous women.

METHODS

The authors examined data from 641 nulliparous women with a term pregnancy that participated in the Pregnancy, Infection, and Nutrition Study from 1995 to 2002. Unadjusted and adjusted risk ratios and 95% confidence intervals (CI) were computed for normal weight (BMI 19.8-26.0 kg/m(2)), overweight (BMI 26.1-29.0 kg/m(2)), and obese (BMI>29.0 kg/m(2)) women. Normal weight women served as the referent population.

RESULTS

The unadjusted risk ratio for cesarean delivery for overweight women compared with normal weight women was 1.4 (95% CI, 0.97, 2.1) and for obese women compared with normal weight women was 1.4 (95% CI, 1.03, 2.0). After controlling for maternal height, education, weight gain during pregnancy, and labor induction, the adjusted risk ratio for cesarean delivery among overweight women was 1.2 (95% CI, 0.8, 1.8). The adjusted risk ratio for obese women was 1.5 (95% CI, 1.05, 2.0).

CONCLUSION

Our analysis confirms that there is a moderate association between maternal pre-pregnancy obesity and an unplanned term cesarean delivery. However, the risk is not as large as previously reported.

Authors+Show Affiliations

Department of Maternal and Child Health, School of Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA. amv@med.umich.eduNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, P.H.S.

Language

eng

PubMed ID

15921926

Citation

Vahratian, Anjel, et al. "Maternal Pre-pregnancy Overweight and Obesity and the Risk of Cesarean Delivery in Nulliparous Women." Annals of Epidemiology, vol. 15, no. 7, 2005, pp. 467-74.
Vahratian A, Siega-Riz AM, Savitz DA, et al. Maternal pre-pregnancy overweight and obesity and the risk of cesarean delivery in nulliparous women. Ann Epidemiol. 2005;15(7):467-74.
Vahratian, A., Siega-Riz, A. M., Savitz, D. A., & Zhang, J. (2005). Maternal pre-pregnancy overweight and obesity and the risk of cesarean delivery in nulliparous women. Annals of Epidemiology, 15(7), 467-74.
Vahratian A, et al. Maternal Pre-pregnancy Overweight and Obesity and the Risk of Cesarean Delivery in Nulliparous Women. Ann Epidemiol. 2005;15(7):467-74. PubMed PMID: 15921926.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Maternal pre-pregnancy overweight and obesity and the risk of cesarean delivery in nulliparous women. AU - Vahratian,Anjel, AU - Siega-Riz,Anna Maria, AU - Savitz,David A, AU - Zhang,Jun, PY - 2004/06/28/received PY - 2005/02/01/accepted PY - 2005/6/1/pubmed PY - 2005/12/15/medline PY - 2005/6/1/entrez SP - 467 EP - 74 JF - Annals of epidemiology JO - Ann Epidemiol VL - 15 IS - 7 N2 - PURPOSE: To examine the effect of maternal pre-pregnancy overweight and obesity on the risk of term cesarean delivery in nulliparous women. METHODS: The authors examined data from 641 nulliparous women with a term pregnancy that participated in the Pregnancy, Infection, and Nutrition Study from 1995 to 2002. Unadjusted and adjusted risk ratios and 95% confidence intervals (CI) were computed for normal weight (BMI 19.8-26.0 kg/m(2)), overweight (BMI 26.1-29.0 kg/m(2)), and obese (BMI>29.0 kg/m(2)) women. Normal weight women served as the referent population. RESULTS: The unadjusted risk ratio for cesarean delivery for overweight women compared with normal weight women was 1.4 (95% CI, 0.97, 2.1) and for obese women compared with normal weight women was 1.4 (95% CI, 1.03, 2.0). After controlling for maternal height, education, weight gain during pregnancy, and labor induction, the adjusted risk ratio for cesarean delivery among overweight women was 1.2 (95% CI, 0.8, 1.8). The adjusted risk ratio for obese women was 1.5 (95% CI, 1.05, 2.0). CONCLUSION: Our analysis confirms that there is a moderate association between maternal pre-pregnancy obesity and an unplanned term cesarean delivery. However, the risk is not as large as previously reported. SN - 1047-2797 UR - https://www.unboundmedicine.com/medline/citation/15921926/Maternal_pre_pregnancy_overweight_and_obesity_and_the_risk_of_cesarean_delivery_in_nulliparous_women_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S1047-2797(05)00058-X DB - PRIME DP - Unbound Medicine ER -