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Relationship between body mass index of third trimester of pregnancy and type of delivery

Aminolsharieh Najafi, S. and Nomali, M. and Goudarzi, Z. and Maslahati, A. and Mobasheri, E. (2015) Relationship between body mass index of third trimester of pregnancy and type of delivery. Tehran University Medical Journal, 72 (12). pp. 831-837. ISSN 16831764 (ISSN)

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Abstract

Background: Maternal Body Mass Index (BMI) is considered as one of most effective determinant of delivery rout, by increase in this index, risk factor of cesarean section enhanced. Based on high prevalence of obesity in women, this study designed to assess the relationship between admission BMI and type of delivery. Methods: Five hundred and forty pregnant women in third trimester of pregnancy (≥37 weeks) were studied within 1 year (from June 2012 to June 2013), at Sayad Shirazi Referral Hospital, Gorgan, Iran, through a analytic cross-sectional study. BMI was calculated for each mother at the time of labor admission. Height and weight were measured, and were categorized into 3 groups according to their BMI which included of underweight and normal (BMI<25), overweight (BMI=25-29.9) and obese (BMI≥30). And in each group route of delivery (cesarean or natural delivery) were assessed. Pregnant women with the previous cesarean delivery, history of diabetes type 1, 2 or gestational diabetes, hypertension, twin pregnancy and unwilling to participate in study were excluded from study. Results: Mean of age and mean of gestational age were 25.8±5.4 years and 38.2±2.6 week, respectively. 50.6% of mothers were undergone cesarean delivery and there was a significant relationship between BMI and type of delivery (P<0.0001). For each unit increase in BMI, risk of cesarean section rose 1.08 times (CI95%=1.04-1.13, P<0.0001) and the risk of cesarean delivery in obese pregnant women was 2.8 (CI95%=1.7-4.4, P<0.0001) times higher than those with underweight and normal weight. Conclusion: There is a significant relationship between maternal BMI at the time of labor admission and type of delivery and increasing of BMI is associated with increasing of cesarean section rate. Thus, keeping the BMI in normal range during pregnancy is suggested to pregnant women to reduce the pregnancy complications. © 2015, Tehran University of Medical Sciences. All rights reserved.

Item Type: Article
Additional Information: Unmapped bibliographic data: LA - Persian [Field not mapped to EPrints] J2 - Tehran Uni. Med. J. [Field not mapped to EPrints] AD - Golestan University of Medical SciencesGorgan, Iran [Field not mapped to EPrints] AD - Department of Research and Technology, Golestan University of Medical SciencesGorgan, Iran [Field not mapped to EPrints] AD - Department of Obstetrics and Gynecology, Golestan University of Medical SciencesGorgan, Iran [Field not mapped to EPrints] AD - Department of Obstetrics and Gynecology, Congenital Malformations Research Center (GCMRC), Sayyad Shirazi Hospital, Golestan University of Medical SciencesGorgan, Iran [Field not mapped to EPrints] DB - Scopus [Field not mapped to EPrints]
Uncontrolled Keywords: Body Mass Index, Cross-sectional studies, Delivery, Pregnancy, Third trimester, adult, Article, body height, body mass, body weight, cesarean section, cross-sectional study, female, gestational age, human, maternal obesity, natural childbirth, pregnant woman, risk factor, third trimester pregnancy, underweight
Subjects: مقالات نمایه شده محققین دانشگاه در سایت ,Web of Science ,Scopus
Divisions: معاونت تحقیقات و فناوری
Depositing User: GOUMS
Date Deposited: 20 Apr 2015 03:55
Last Modified: 08 Jun 2015 06:17
URI: http://eprints.goums.ac.ir/id/eprint/1671

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