Association of birth length and risk of hospitalisation among full-term babies in Japan

Tsuguhiko Kato, Takashi Yorifuji, Sachiko Inoue, Hiroyuki Doi, Ichiro Kawachi

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Background Barker's fetal programming hypothesis suggests that disproportionate size at birth may have a lifelong impact on one's health. However, the literature on birth length is considerably more sparse compared with birthweight. We, therefore, examined the relationship between birth length and hospitalisation early in life among Japanese children. Methods We used the nationwide Longitudinal Survey of Babies in 21st Century and restricted the study subjects to full-term singleton babies (n = 44 057). We estimated the effects of birth length and birthweight on the risk of hospitalisation using log linear regression models. We controlled for a set of neonatal and maternal factors. Results Birth length was associated with the chance of hospitalisation due to all causes between 6 and 18 months of age. In addition, the association was stronger than that with birthweight. Adjusted risk ratios showed that the relationship between birth length and hospitalisation was U-shaped: 1.16 [95% confidence intervals, 1.08, 1.25] at 30-48 cm, 1 [Reference] at 49 cm, 1.13 [1.04, 1.22] at 50 cm, and 1.11 [1.02, 1.20] at 51-60 cm. Short babies with low or high weight, as well as long babies with low weight, seem to be at increased risk of hospitalisation. Conclusions We found a U-shaped relationship between birth length and risk of hospitalisation due to all causes during the period from 6 to 18 months.

Original languageEnglish
Pages (from-to)361-370
Number of pages10
JournalPaediatric and Perinatal Epidemiology
Volume27
Issue number4
DOIs
Publication statusPublished - Jul 2013

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Japan
Hospitalization
Parturition
Linear Models
Weights and Measures
Fetal Development
Longitudinal Studies
Odds Ratio
Mothers
Confidence Intervals
Health

Keywords

  • birth length
  • birth weight
  • epidemiology
  • fetal growth
  • hospitalization

ASJC Scopus subject areas

  • Epidemiology
  • Pediatrics, Perinatology, and Child Health

Cite this

Association of birth length and risk of hospitalisation among full-term babies in Japan. / Kato, Tsuguhiko; Yorifuji, Takashi; Inoue, Sachiko; Doi, Hiroyuki; Kawachi, Ichiro.

In: Paediatric and Perinatal Epidemiology, Vol. 27, No. 4, 07.2013, p. 361-370.

Research output: Contribution to journalArticle

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