Korean J Obstet Gynecol.  2012 May;55(5):300-308. 10.5468/KJOG.2012.55.5.300.

Pregnancy prognosis according to prepregnancy body mass index and gestational weight gain in twin pregnancies

Affiliations
  • 1Department of Obstetrics and Gynecology, CHA Gangnam Medical Center, CHA University College of Medicine, Seoul, Korea. jlee3575@chamc.co.kr
  • 2Department of Internal Medicine, CHA Gangnam Medical Center, CHA University College of Medicine, Seoul, Korea.

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< or =BMI<23 kg/m2), overweight (23.0< or =BMI<25 kg/m2), and obese (BMI> or =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 significantly associated with obese women. Anemia was significantly increased in "poor" weight gain group whereas gestational hypertension, large for gestational age and neonatal Apgar score of 5 minutes under 7 were significantly 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.

Keyword

Twin pregnancy; Prepregnancy BMI; Maternal weight gain; Pregnancy outcome

MeSH Terms

Anemia
Apgar Score
Body Mass Index
Counseling
Diabetes, Gestational
Female
Gestational Age
Humans
Hypertension, Pregnancy-Induced
Institute of Medicine (U.S.)
Overweight
Pregnancy
Pregnancy Outcome
Pregnancy, Twin
Pregnant Women
Prognosis
Thinness
Weight Gain

Cited by  1 articles

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Hee-Jung Wang, Hye-Sook Park, Il-Ok Kim
Korean J Women Health Nurs. 2013;19(4):230-241.    doi: 10.4069/kjwhn.2013.19.4.230.


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