Maternal antenatal body mass index gains as predictors of large-for-gestational-age infants and cesarean deliveries in Japanese singleton pregnancies

Hidemi Takimoto, Takashi Sugiyama, Miho Nozue, Kaoru Kusama, Hideoki Fukuoka, Noriko Kato, Nobuo Yoshiike

研究成果: Article

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Aim: Greater antenatal weight or body mass index (BMI) gains may lead to larger fetuses and thus increase the risk for operative deliveries, such as cesarean deliveries. In order to examine the effect of weekly maternal weight and BMI changes on large-for-gestational-age (LGA) infants and cesarean delivery, delivery records from overall healthy women were analyzed. Materials and Methods: Singleton, term delivery records from January to December 2003, at three obstetric departments (urban, suburban, rural) in Japan (1617 records) were analyzed. Multivariate logistic regression analyses were applied in order to estimate the effect of maternal pre-pregnancy body size, higher maternal weight or BMI gains by calculating the odds ratios for LGA infants and cesarean deliveries. Results: Maternal pre-pregnancy overweight, primiparity, and BMI gains of more than 0.13 per week were independent factors positively related to LGA, and maternal underweight was negatively related. Urban hospital setting, maternal age 35 years or older, primiparity, and BMI gains of more than 0.13 per week independently increased the odds ratios for cesarean delivery. Weight or BMI gains between two-week intervals (26-28 weeks, 32-34 weeks) were not useful for predicting either LGA or cesarean delivery. LGA was unrelated to cesarean delivery risk. Conclusions: Applying BMI gains per week enables target weight gains to be set according to the mother's height, which may be useful in reducing risks for LGA and cesarean delivery, especially in shorter women. Further investigation may be needed to explore the practicality and effectiveness of advising women to gain weight according to their body height.

元の言語English
ページ(範囲)553-562
ページ数10
ジャーナルJournal of Obstetrics and Gynaecology Research
37
発行部数6
DOI
出版物ステータスPublished - 2011 6

ASJC Scopus subject areas

  • Obstetrics and Gynaecology

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