| Budget Amount *help |
¥730,000 (Direct Cost: ¥700,000、Indirect Cost: ¥30,000)
Fiscal Year 2007: ¥130,000 (Direct Cost: ¥100,000、Indirect Cost: ¥30,000)
Fiscal Year 2006: ¥600,000 (Direct Cost: ¥600,000)
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| Research Abstract |
To identify appropriate prenatal weight gain ranges associated with least obstetric complications, a retrospective cohort study was conducted with 733 healthy women with a singleton pregnancy. Pregnant women were' grouped by pre-pregnant body mass index (BMI) according to the definitions of Japan Society of Obstetrics and Gynecology, lean (BMI<18.0), medium (18≦BMI<24.0), and overweighed women (BMI≦24.0). In each women group, total prenatal weight gain was grouped according to 10th, 25th, 50th, 75th, and 90th percentile values. In lean women, small for gestational age(SFG)infants risk was related to weight gain less than 75th percentile (12.6 kg) and post-term pregnancy (≧90th of gestational length, 287days)risk was related to weight gain equal or more than 90th percentile (14.7kg). In medium women, SFG and low birth weight (<2,500g)infants risk was related to weight gain less than 10th percentile (6 kg) and prolonged labor risk was related to weight gain equal or more than 90th percentile (14.0kg). In overweighed women, large for gestational age (LGA)infants risk was related to weight gain equal or more than 50th percentile (7.1 kg). In conclusions, optimal prenatal weight gains are 12.6≦and <14.7 kg for lean, 6.0≦and <14.0 kg for medium, and <7.1kg for overweighed women.
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