ArticleJournal of Korean medical science2016
Seasonal Pattern of Preterm Births in Korea for 2000-2012.
Article in Journal of Korean medical science, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Association between maternal risk factors and preterm birth in South Korea: a nationwide cohort study of 795,715 pregnancies.BMC pregnancy and childbirth · 2026Observational
- Seasonal patterns of preterm birth in the Netherlands: A population-based cohort study.Acta obstetricia et gynecologica Scandinavica · 2025Article
- Seasonal pattern of preterm birth in the Netherlands: A population-based retrospective cohort study.PloS one · 2025Article
- Adverse birth outcomes in Guangdong province, China, 2014-2017: a spatiotemporal analysis of 2.9 million births.BMJ open · 2019Article
- Socioeconomic and Environmental Determinants to Preterm Birth in Tibetan Women: An Analysis Based on the Hierarchically Conceptual Frame.Chinese medical journal · 2017Article
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7 authors.
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Abstract
The aim of this study was to investigate a seasonal pattern of preterm births in Korea. Data were obtained from the national birth registry of the Korean Statistics Office and included all births in Korea during the period 2000-2012 (n = 6,310,800). Delivery dates were grouped by month of the year or by season (winter [December, January, February], spring [March, April, May], summer [June, July, August], and autumn [September, October, November]). The seasonal patterns of prevalence of preterm births were assessed. The rates of preterm births at 37 weeks were highest twice a year (once in winter and again in summer). The rates of preterm births increased by 13.9% in summer and 7.5% in winter, respectively, than in spring (OR, 1.139; 95% CI, 1.127-1.152, and OR, 1.075; 95% 1.064-1.087, respectively) after controlling for age, the educational level of the parents, maternal parity, and neonatal gender. The pattern for spontaneous preterm births < 34 weeks was similar. In Korea, a seasonal pattern of preterm births was observed, with peak prevalence in summer and winter. A seasonal pattern of preterm births may provide new insights for the pathophysiology of preterm births.
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