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doi:10.1111/jog.12283
J. Obstet. Gynaecol. Res. Vol. 40, No. 4: 988–994, April 2014
Associations of maternal pre-pregnancy underweight with small-for-gestational-age and spontaneous preterm birth, and optimal gestational weight gain in Japanese women Kana Fujiwara1, Shigeru Aoki1, Kentaro Kurasawa1, Mika Okuda1, Tsuneo Takahashi1 and Fumiki Hirahara2 1 Perinatal Center for Maternity and Neonatal, Yokohama City University Medical Center, and 2Department of Obstetrics and Gynecology, Yokohama City University Hospital, Yokohama, Japan
Abstract Aim: To determine associations of maternal pre-pregnancy underweight with poor outcomes and evaluate how gestational weight gain affects risks for such outcomes in pre-pregnancy underweight Japanese women. Methods: By analyzing the January 2001–December 2012 hospital database, we retrospectively identified 6954 women with pre-pregnancy normal weights (body mass index, 18.5–24.9 kg/m2) and 1057 pre-pregnancy underweight women (body mass index, 29 kg/m2), to correspond to the 2009 World Health Organization classification (underweight,
doi:10.1111/jog.12283
J. Obstet. Gynaecol. Res. Vol. 40, No. 4: 988–994, April 2014
Associations of maternal pre-pregnancy underweight with small-for-gestational-age and spontaneous preterm birth, and optimal gestational weight gain in Japanese women Kana Fujiwara1, Shigeru Aoki1, Kentaro Kurasawa1, Mika Okuda1, Tsuneo Takahashi1 and Fumiki Hirahara2 1 Perinatal Center for Maternity and Neonatal, Yokohama City University Medical Center, and 2Department of Obstetrics and Gynecology, Yokohama City University Hospital, Yokohama, Japan
Abstract Aim: To determine associations of maternal pre-pregnancy underweight with poor outcomes and evaluate how gestational weight gain affects risks for such outcomes in pre-pregnancy underweight Japanese women. Methods: By analyzing the January 2001–December 2012 hospital database, we retrospectively identified 6954 women with pre-pregnancy normal weights (body mass index, 18.5–24.9 kg/m2) and 1057 pre-pregnancy underweight women (body mass index, 29 kg/m2), to correspond to the 2009 World Health Organization classification (underweight,
