Recent trend of increase in proportion of low birthweight infants in Japan

Ohmi, Hiroki; Hirooka, Kenzou; Hata, Akira; Mochizuki, Yoshikatsu

doi:10.1093/ije/30.6.1269

Cited by 47 publications

(42 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In 1982, the proportion of underweight Japanese women in their 20s and 30s was12.1% and 8.2%, respectively, and in 2012, these rates had increased to 21.8% and 17.1%, respectively [4,5]. Since the 1970s, a consistent increase in the proportion of LBW infants has been observed [6].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Risk Factors for Low Birth Weight Infants in Japanese Pregnancies: A One-year Study of 2551 Cases in Tokyo

Arima¹,

Kasai²,

Sugimoto³

et al. 2017

Int J Pediatr Neonat Care

View full text Add to dashboard Cite

Background: The rate of low-birth weight infants in Japan has been increasing. Being underweight and increasing maternal age are risk factors for delivering low birthweight infants. Currently, pregnant Japanese women exhibit these risk factors for delivering low birthweight infants; however, little research has been conducted. This study aimed to investigate the associations between pregnancy characteristics in Japanese women and low birth weight infants. Methods: We enrolled 2551 pregnant women at >36 weeks of gestation and who delivered in metropolitan Tokyo. Pre-pregnancy body mass index was categorized using the World Health Organization classification. Gestational weight gain and birth weight were categorized based on the guidelines of the Ministry of Health, Labour and Welfare, Japan. The differences in pregnancy characteristics among three birth-weight categories,i.e., low birth weight, normal, and macrosomia, were assessed using the chisquare test. The risk ratios of low birth weight were estimated using logistic regression analysis. Results: In Japanese pregnancies, birth weight was associated with gestational week at delivery, gestational weight gain, pre-pregnancy body mass index, sex, parity, and maternal age (P<0.05). In particular, the risk of low birth weight increased with advanced maternal age (odds ratio=1.97), insufficient gestational week at delivery (odds ratio=9.00), low gestational weight gain (odds ratio=2.76), and female infant (odds ratio=2.06). Further, it decreased in multiparous women compared with that in primiparous women (odds ratio=0.57). Conclusions: These findings suggest that pregnant Japanese women who are ≥40 years old with a gestational weight gain of <7.0 kg, <37 gestational weeks at delivery, female baby, and primiparous should be checked carefully during the gestational period. In order to decrease the risk of low birth weight babies, women should be educated early about childbearing and pregnancy.

show abstract

Section: Introductionmentioning

confidence: 99%

“…Little research has been conducted on the associations between birth and older mothers despite the increasing rates of LBW infants in Japan [6,12]. The objective of this study was to assess the association between maternal characteristics and BW after controlling for other maternal factors.…”

Section: Introductionmentioning

confidence: 99%

Risk Factors for Low Birth Weight Infants in Japanese Pregnancies: A One-year Study of 2551 Cases in Tokyo

Arima¹,

Kasai²,

Sugimoto³

et al. 2017

Int J Pediatr Neonat Care

View full text Add to dashboard Cite

show abstract

“…Takimoto et al indicated that the increase in preterm deliveries and multiple gestations were important factors with regard to the increase in low-birth weight infants in Japan (21). In addition, a decrease in BMI of young women with childbearing potential may be another important factor (22). Actually, the National Nutrition Survey showed a decreasing trend of BMI among young Japanese women in recent years (23).…”

Section: Discussionmentioning

confidence: 99%

Relationships between Birth Weight and Serum Cholesterol Levels in Healthy Japanese Late Adolescents

Ito

Uenishi

Ishida

et al. 2014

J Nutr Sci Vitaminol

View full text Add to dashboard Cite

Summary Poor growth in utero has been suggested to be associated with adverse levels of serum cholesterol concentrations in later life. In Asia, there have only been a limited number of studies examining the relationship between fetal status and serum lipids, especially in adolescents. The objective of this study was to examine the relationships between birth weight and serum high-density lipoprotein (HDL) and low-density lipoprotein (LDL) cholesterol levels; adjusting for current physical status including percent body fat, physical activity and nutrient intake in healthy Japanese late adolescents. The data of 573 late adolescents with an average age of 17.6 (287 boys and 286 girls) who underwent physical examinations which included blood sampling and who had all the required data, were analyzed. Birth weight was obtained from their maternal and child health handbook. Multiple regression analysis showed that birth weight was positively associated with serum HDL in girls, independently of percent body fat or fat intake, when adjusted for current body height and weight. There were no associations between birth weight and serum HDL in boys, or serum LDL in either sex.

show abstract

“…Whereas the prevalence of low birth weight has increased in several OECD countries (OECD, 2009a), Japan is unique among developed countries in that the low birth weight rate has almost doubled in the past three decades (Hokama and Binns, 2009) passing from 5 per cent in the late 1970s to almost 10 per cent in the late 2000s. Possible causes include an increase in smoking among younger women (Ohmi et al, 2001) and the tendency to have children at older ages (Jeong and Hurst, 2001). Similar exceptions are the Czech Republic, Greece, Portugal and Spain that show low infant mortality rates and high percentages of low birth weight.…”

Section: Healthmentioning

confidence: 99%

Child Well-Being in Advanced Economies in the Late 2000s

Martorano¹,

Natali²,

Neubourg³

et al. 2013

Soc Indic Res

View full text Add to dashboard Cite

The full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details. ABSTRACTThis paper compares the well-being of children across the most economically advanced countries of the world. It discusses the methodological issues involved in comparing children's well-being across countries and explains how a Child Well-being Index is constructed to rank countries according to their performance in advancing child-well-being. The index uses 30 indicators combined in 13 components again summarised in 5 dimensions for 35 rich countries. Data from various sources are combined to capture aspects of child well-being: material well-being, health, education, behaviour and risks, housing and environment. The scores for the countries on all variables and combinations of variables are discussed in detail. The Child Well-being index reveals that serious differences exist across countries suggesting that in quite many countries improvement could be made in the quality of the lives of children. This paper is one of the three background papers written as the basis for Report Card 11 (2013) titled Child Well-being in Rich Countries: a Comparative View.

show abstract

Recent trend of increase in proportion of low birthweight infants in Japan

Abstract: Since the 1970s increase in smoking prevalence and decrease in body mass index in young women, especially those in their thirties, appeared to be the major factors involved in the increase in LBW babies.

Cited by 47 publications

References 4 publications

Risk Factors for Low Birth Weight Infants in Japanese Pregnancies: A One-year Study of 2551 Cases in Tokyo

Risk Factors for Low Birth Weight Infants in Japanese Pregnancies: A One-year Study of 2551 Cases in Tokyo

Relationships between Birth Weight and Serum Cholesterol Levels in Healthy Japanese Late Adolescents

Child Well-Being in Advanced Economies in the Late 2000s

Contact Info

Product

Resources

About