쌍태임신에서 임신 전 체질량지수 및 임신 중 체중증가에 따른 임신 예후 = Pregnancy Prognosis According To Prepregnancy Body Mass Index And Gestational Weight Gain In Twin Pregnancies쌍태임신에서 임신 전 체질량지수 및 임신 중 체중증가에 따른 임신 예후

다국어 초록 (Multilingual Abstract)

Objective To analyze the pregnancy outcome and prognosis related to prepregnancy body mass index (BMI) and gestational weight gain in twin pregnancies according to the 2009 Institute of Medicine recommendation (IOM). Methods The study subjects were 500 twin pregnant women and their 1,000 babies delivered from January 2008 to December 2010. The women divided in 4 groups according to prepregnancy BMI; underweight (BMI<18.5 kg/m2), normal weight (18.5≤BMI<23 kg/m2), overweight (23.0≤BMI<25 kg/m2), and obese (BMI≥25 kg/m2) and also categorized 3 groups according to gestational weight gain; poor if it was below the IOM range for the prepregnancy BMI, normal if it was within the range, and excessive if it was above the range. Results Among total 500 twin pregnant women, underweight were 76 (15.2%), normal weight 330 (66.0%), overweight 55 (11.0%) and obese 39 (7.8%); poor 237 (47.4%), normal 220 (44%) and excessive 43 (8.6%). The mean total weight gain during pregnancy was 16.3±4.9 kg and mean weight gain per week was 0.45±0.13 kg/wk. Gestational diabetes mellitus was signifi cantly associated with obese women. Anemia was signifi cantly increased in poor weight gain group whereas gestational hypertension, large for gestational age and neonatal Apgar score of 5 minutes under 7 were signifi cantly increased in excessive weight gain group. Conclusion The adverse pregnancy and neonatal prognosis were associated with abnormal prepregnancy BMI or gestational weight gain in twin pregnancies. It is important to maintain normal prepregnancy BMI and gestational weight gain through appropriate counseling and education.