ArticleBMC pregnancy and childbirth2012
Trends of preterm birth and low birth weight in Japan: a one hospital-based study.
Article in BMC pregnancy and childbirth, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Analysis of Differences in Preterm Birth Rates According to Household Occupation in Japan From 2007 to 2019.Journal of preventive medicine and public health = Yebang Uihakhoe chi · 2022Article
- Elective cesarean delivery at term and its effects on respiratory distress at birth in Japan: The Japan Environment and Children's Study.Health science reports · 2021Article
- Dose-Dependent Influence of Antithyroid Drugs on the Difference in Free Thyroxine Levels between Mothers with Graves' Hyperthyroidism and Their Neonates.European thyroid journal · 2021Article
- Spatiotemporal association of low birth weight with Cs-137 deposition at the prefecture level in Japan after the Fukushima nuclear power plant accidents: an analytical-ecologic epidemiological study.Environmental health : a global access science source · 2020Article
- A Japanese survey of malignant disease in pregnancy.International journal of clinical oncology · 2019Article
- Association between Short Maternal Height and Low Birth Weight: a Hospital-based Study in Japan.Journal of Korean medical science · 2016Article
- Effectiveness of Home Visits in Pregnancy as a Public Health Measure to Improve Birth Outcomes.PloS one · 2015Article
- Long working hours and pregnancy complications: women physicians survey in Japan.BMC pregnancy and childbirth · 2014Article
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Authors and funding
8 authors.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundThe proportions of preterm birth (PTB, ie., delivered before 37 gestational weeks) and low birth weight (LBW, ie., birth weight less than 2500 g at delivery) have been rising in developed countries. We sought to examine the factors contributing to the rise in Japan, with particular focus on the effects of obstetric interventions.
methodsWe used a database maintained by one large regional hospital in Shizuoka, Japan. We restricted the analysis to mothers who delivered live singleton births from 1997 to 2010 (n = 19,221). We assessed the temporal trends in PTB and LBW, then divided the study period into four intervals and compared the proportions of PTB and LBW. We also compared the newborns' outcomes between the intervals.
resultsPTB, in particular medically indicated PTB, increased considerably. The increase was largely explained by changes in caesarean sections. The neonatal outcomes did not worsen, and instead the Apgar scores and proportions requiring neonatal intensive care unit (NICU) admission improved. In particular, the risks of NICU admission in the interval from 2007 to 2010 were decreased among all births [odds ratio (OR): 0.84; 95% confidence interval (CI): 0.75, 0.95] and medically indicated births (OR: 0.44; 95% CI: 0.29, 0.68) compared with the interval from 1997 to 2000.
conclusionsDespite the increases in PTB as well as LBW, the present study suggests benefits of obstetric interventions. Rather than simple categorization of PTB or LBW, indicators such as perinatal mortality or other outcomes may be more appropriate for evaluation of perinatal health in developed countries.
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