Associations of the Pre-Pregnancy Body Mass Index and Gestational Weight Gain With Pregnancy Outcomes in Taiwanese Women

懷孕前身體質量指數及懷孕期體重增加量與台灣孕婦懷孕結果相關性之研究

I-Hsien Tsai ； Chih-Ping Chen ； Fang-Ju Sun ； Chia-Hsun Wu MD ； Sung-Ling Yeh

《Asia Pacific Journal of Clinical Nutrition》 21卷1期 (2012/03) Pp. 82-87

https://doi.org/10.6133/apjcn.2012.21.1.11

摘要

BACKGROUND: Pre-pregnancy weight and gestational weight gain (GWG) are important factors in both maternal and infant outcomes. Little information is available in relation to different levels of pre-pregnancy body mass index (BMI) and body weight gain on obstetric outcomes in Taiwan. This study investigated the associations between pregnancy complications with pre-pregnant BMI and GWG, in Taiwanese women. METHODS: Data were extracted from a delivery room information bank on all women delivering singleton babies in a medical center. Eight hundred and sixty pregnant women were included. The collected variables included basic information, GWG, and pregnancy and neonatal outcomes. Pregnant women were categorized according to their pre-pregnant BMI and GWG to evaluate the impacts of pre-pregnant BMI and maternal weight gain on the risk of pregnancy complications. Univariate and multivariable logistic regression analyses were performed, and odds ratios were calculated. RESULTS: Pre-pregnancy BMI≥24 kg/m^2 increased the risks of gestational diabetes mellitus, preeclampsia, and preterm labor. Preeclampsia and Cesarean delivery were positively associated with high weight gains (＞18 kg), whereas a low birth weight and preterm labor were strongly associated with low weight gains (＜10 kg). A higher birth weight was found with a GWG of ＞14 kg in women who were underweight and normal weight before pregnancy. CONCLUSION: An appropriate maternal BMI (18.5-24 kg/m^2) at conception followed by a suitable gestational weight gain (10-14 kg) has substantial impact on the overall health of pregnant women and would lead to better obstetric management for Taiwanese women.

關鍵字

身體質量指數 ； 懷孕前體重 ； 懷孕期體重變化 ； 懷孕結果 ； 低出生體重

並列摘要

BACKGROUND: Pre-pregnancy weight and gestational weight gain (GWG) are important factors in both maternal and infant outcomes. Little information is available in relation to different levels of pre-pregnancy body mass index (BMI) and body weight gain on obstetric outcomes in Taiwan. This study investigated the associations between pregnancy complications with pre-pregnant BMI and GWG, in Taiwanese women. METHODS: Data were extracted from a delivery room information bank on all women delivering singleton babies in a medical center. Eight hundred and sixty pregnant women were included. The collected variables included basic information, GWG, and pregnancy and neonatal outcomes. Pregnant women were categorized according to their pre-pregnant BMI and GWG to evaluate the impacts of pre-pregnant BMI and maternal weight gain on the risk of pregnancy complications. Univariate and multivariable logistic regression analyses were performed, and odds ratios were calculated. RESULTS: Pre-pregnancy BMI≥24 kg/m^2 increased the risks of gestational diabetes mellitus, preeclampsia, and preterm labor. Preeclampsia and Cesarean delivery were positively associated with high weight gains (＞18 kg), whereas a low birth weight and preterm labor were strongly associated with low weight gains (＜10 kg). A higher birth weight was found with a GWG of ＞14 kg in women who were underweight and normal weight before pregnancy. CONCLUSION: An appropriate maternal BMI (18.5-24 kg/m^2) at conception followed by a suitable gestational weight gain (10-14 kg) has substantial impact on the overall health of pregnant women and would lead to better obstetric management for Taiwanese women.

並列關鍵字

body mass index (BMI) ； pre-pregnancy weight ； gestational weight gain (GWG) ； pregnancy outcomes ； low birth weight