Different Risk Factors for Very Low Birth Weight, Term-Small-for-Gestational-Age, or Preterm Birth in Japan

Tamura, Naomi; Hanaoka, Tomoyuki; Ito, Kumiko; Araki, Atsuko; Miyashita, Chihiro; Ito, Sachiko; Minakami, Hisanori; Cho, Kazutoshi; Endo, Toshiaki; Sengoku, Kazuo; Ogasawara, Katsuhiko; Kishi, Reiko

Different Risk Factors for Very Low Birth Weight, Term-Small-for-Gestational-Age, or Preterm Birth in Japan

Tamura, Naomi; Hanaoka, Tomoyuki; Ito, Kumiko et al.

International Journal of Environmental Research and Public Health, 2018, 15(2), 369

Permalink : https://hdl.handle.net/2115/68348

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アクセス権	open access
URI	https://hdl.handle.net/2115/68348
タイトル	Different Risk Factors for Very Low Birth Weight, Term-Small-for-Gestational-Age, or Preterm Birth in Japan
著者	Tamura, Naomi ; Hanaoka, Tomoyuki ; Ito, Kumiko ; Araki, Atsuko ; Miyashita, Chihiro ; Ito, Sachiko ; Minakami, Hisanori ; Cho, Kazutoshi ; Endo, Toshiaki ; Sengoku, Kazuo ; Ogasawara, Katsuhiko ; Kishi, Reiko
e-Rad_Researcher 80836164 著者名 Tamura, Naomi
著者名 Hanaoka, Tomoyuki
著者名 Ito, Kumiko
e-Rad_Researcher 00619885 著者名 Araki, Atsuko
e-Rad_Researcher 70632389 著者名 Miyashita, Chihiro
著者名 Ito, Sachiko
e-Rad_Researcher 40102256 著者名 Minakami, Hisanori
e-Rad_Researcher 10312365 著者名 Cho, Kazutoshi
e-Rad_Researcher 90213595 著者名 Endo, Toshiaki
e-Rad_Researcher 30163124 著者名 Sengoku, Kazuo
e-Rad_Researcher 90322859 著者名 Ogasawara, Katsuhiko
e-Rad_Researcher 80112449 著者名 Kishi, Reiko
言語	英語
キーワード	birth cohort
	parental factor
	fetal growth restriction
	socioeconomic condition
発行日	2018-02
出版者	MDPI
収録物名	International Journal of Environmental Research and Public Health
巻(号)	15(2)
ページ	369
抄録	From 1985 to 2013, the mean birth weight of infants in Japan decreased from 3120 g to 3000 g, and the low-birth-weight rate among live births increased from 6.3% to 9.6%. No prospective study has elucidated the risk factors for poor fetal growth and preterm birth in recent Japanese parents, such as increased parental age, maternal body figure, assisted reproductive technology (ART), and socioeconomic status. Participants were mother-infant pairs (n = 18,059) enrolled in a prospective birth cohort in Hokkaido, Japan from 2002 to 2013. Parental characteristics were obtained via self-reported questionnaires during pregnancy. Medical records helped identify very-low-birth-weight (VLBW; <1500g), term-small-for-gestational-age (term-SGA), and preterm-birth (PTB; <37 weeks) infants. We calculated relative risks (RRs) for PTB, VLBW, and term-SGA birth based on parental characteristics. The prevalence of PTB, VLBW, and term-SGA was 4.5%, 0.4%, and 6.5%, respectively. Aged parents and ART were risk factors for PTB and VLBW. Maternal alcohol drinking during pregnancy increased the risk; a parental educational level of ≥16 years reduced risk of term-SGA. Maternal pre-pregnancy BMI of <18.5 kg/m2 increased the risk of PTB and term-SGA. The RR for low BMI was highest among mothers who have low educational level. Among various factors, appropriate nutritional education to maintain normal BMI is important to prevent PTB and term-SGA in Japan.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	Creative Commons Attribution 4.0 International
PISSN	1660-4601
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.3390/ijerph15020369