Korean J Obstet Gynecol.  2001 Jun;44(6):1103-1108.

The Association of Maternal Body Mass Index with Birth Weight and Cesarean Delivery

• Joo JY
• Bae JI
• Lee JH
• Park JS
• Han KS
• Bae KH

Abstract

OBJECTIVES
The aim of this study was to evaluate the correlations of pre-pregnancy maternal BMI(body mass index), and weight gain during pregnancy with Birth weight and Cesarean delivery in full term infants.
METHODS
We collected data from 1086 pregnancies without complications, and analysed pre-pregnancy maternal BMI, weight gain during pregnancy, and the incidences of SGA(small-for-gestational age), LGA(large-for-gestational age), cesarean delivery. Chi-square test, T-test, and One way Anova test were performed for stastatical analysis.
RESULTS
In pre-pregnancy maternal BMI <19.8kg/m2 group, the incidence of SGA was 12.2%, LGA 6.2% and cesarean delivery 14.9% respectively, but in >26.0kg/m2 group, 0%, 23.6% and 36.4% respectively(p<0.05). In under weight gain during pregnancy group, incidence of SGA was 13.4%, LGA 4.7% and cesarean delivery 15.7% respectively, but in high weight gain group, 4.8%, 19.5% and 21.0% respectively(p<0.05).
CONCLUSION
There was significant correlations among pre-pregnancy maternal BMI, weight gain during pregnancy, birth weight and cesarean delivery. From these results, it is considered that antenatal maternal BMI and weight gain during pregnancy are valuable to predict birth weight and cesarean delivery.

Keyword

BMI; Maternal weight gain; Birth weight; Cesarean delivery

MeSH Terms

Birth Weight*
Body Mass Index*
Humans
Incidence
Infant
Parturition*
Pregnancy
Weight Gain