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Ha, Kim, Kang, and Park: An association of gestational weight gain and prepregnancy body mass index with perinatal outcomes
Original Article
Korean Journal of Obstetrics & Gynecology

Korean Journal of Obstetrics & Gynecology 2011; 54(10): 575-581.

Published online: 19 October 2011

DOI: https://doi.org/10.5468/KJOG.2011.54.10.575

An association of gestational weight gain and prepregnancy body mass index with perinatal outcomes

Jeong Yi Ha, MD, Hyo Jin Kim, MD, Chang Seong Kang, MD, PhD, Sung Chul Park, MD

Department of Obstetrics and Gynecology, Han-il Hospital, Seoul, Korea.

Corresponding author: Chang Seong Kang, MD, PhD. Department of Obstetrics and Gynecology, Han-il Hospital, 388-1 Ssangmun-dong, Dobong-gu, Seoul 132-703, Korea. Tel: +82-2-901-3129, Fax: +82-2-901-3244, stodra@hanmail.net

Received 17 May 2011       Revised 13 July 2011       Accepted 11 August 2011

Copyright © 2011. Korean Society of Obstetrics and Gynecology

(open-access):

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Objective

To investigate an association of gestational weight gain (GWG) and prepregnancy body mass index (BMI) with perinatal outcomes.

Methods

The sample included 3,428 Korean patients who had uncomplicated singleton term pregnancy from 2001 to 2009. The patients were categorized into four groups according to prepregnancy BMI; underweight (< 18.5 kg/m2), normal weight (18.5-22.9 kg/m2), overweight (23.0-24.9 kg/m2) and obese (≥ 25.0 kg/m2) and were also categorized into four groups according to the 25th, 50th, 75th percentile of GWG. Adjusted associations of GWG and prepregnancy BMI with perinatal outcomes were estimated by logistic regression analyses.

Results

The greater GWG and the heavier prepregnancy BMI decreased the risk of small for gestational age and increased the risk of cesarean section for nulliparas and large for gestational age.

Conclusion

There was an association of GWG and prepregnancy BMI with perinatal outcomes. To prevent maternal or neonatal complications associated with excessive or inadequate GWG, a multicenter study is needed to establish a Korean standard value for the recommended range of GWG.

Keywords: Body mass index, Gestational weight gain, Perinatal outcome

Figures and Tables

Fig. 1
Box plots of gestational weight gain by prepregnancy body mass index (BMI) categories.
kjog-54-575-g001
Table 1
Prepregnancy body mass index (BMI) categories by gestational weight gain categories
kjog-54-575-i001

Values are presented as number (%).

Table 2
Characteristics of the study population according to the pregestational BMI categories
kjog-54-575-i002

Values are presented as mean ± standard deviation or number (%).

BMI, body mass index; SGA, small for gestational age; AGA, appropriate for gestational age; LAG, large for gestational age.

aNullipara.

Table 3
Characteristics of the study population according to the gestational weight gain categories
kjog-54-575-i003

Values are presented as mean ± standard deviation or number (%).

BMI, body mass index; SGA, small for gestational age; AGA, appropriate for gestational age; LAG, large for gestational age.

aNullipara.

Table 4
Pregnancy outcomes according to pregestational BMI and gestational weight gain categoriesa
kjog-54-575-i004

Values are presented as mean ± standard deviation or number (%).

BMI, body mass index; SGA, small for gestational age; LAG, large for gestational age; OR, odds ratio.

aPrepregnancy BMI and gestational weight gain were mutually adjusted.

bAdjusted for age, parity, weeks' gestation and maternal height.

cNulliparas adjusted for age, weeks' gestation, maternal height and birth weight.

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