ArticleBMJ open2020
Ten-year time trends in preterm birth during a sociodemographic transition period: a retrospective cohort study in Shenzhen, China.
Article in BMJ open, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.
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Who cites it
8 citing papers in PubMed, 1 synthesis or guideline pooled it, 18 citations in OpenAlex.
- Pooled it
- Trends and characteristics of triplet births in a tertiary maternity hospital in China: A retrospective study over two decades.European journal of obstetrics & gynecology and reproductive biology: X · 2025Article
- Prevalence, trends, and maternal risk factors of adverse birth outcomes from a hospital-based birth defects surveillance system in Kampala, Uganda, 2015-2022.BMC pregnancy and childbirth · 2025Article
- Secular variation and risk factors of preterm birth in Hainan, the Free Trade Port in China from 2010 to 2021.BMC pregnancy and childbirth · 2024Observational
- The prevalence of preterm and low birth weight infants among migrant women in the Pearl River Delta region, China: a population-based birth cohort study.BMC public health · 2024Observational
- Combined exposure to PMFrontiers in public health · 2023Article
- 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
- Stillbirth trends by maternal sociodemographic characteristics among a large internal migrant population in Shenzhen, China, over a 10-year period: a retrospective study.BMC public health · 2022Article
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Authors and funding
9 authors at 1 institution in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesTo investigate time trends of preterm birth and estimate the contributions of risk factors to the changes in preterm birth rates over a decade (2009-2018) of transitional period in Shenzhen, China.
designRetrospective cohort study between 2009 and 2018.
settingAll births in Baoan during January 2009 and December 2018 registered in the Shenzhen Birth Registry Database.
participants478 044 live births were included with sociodemographic and medical records for both women and infants. OUTCOME MEASURES: The incidence rate of preterm birth stratified by different maternal and infant characteristics. Multiple logistic regression was used to identify significant risk factors associated with preterm birth. The population attributable risk fraction of each factor was calculated to estimate its contribution to variations of preterm birth rate over the 10 years.
resultsA total of 27 829 preterm births from 478 044 (5.8%) live births were recorded and the preterm birth rate increased from 5.5% in 2009 to 6.2% in 2018. Medically induced preterm birth rate increased from 2.0% in 2009 to 3.4% in 2018 while spontaneous preterm labour rate decreased from 3.3% to 2.7% over the decade years. Risk factors including multiple pregnancy (0.28% increase) drove the rise of preterm birth rate, whereas changes in maternal educational attainment (0.22% reduction) and prenatal care utilisation (0.45% reduction) had contributed to the decline in preterm birth rate.
conclusionsAn uptrend of preterm birth rate was observed in an area under rapid sociodemographic transitions during 2009-2018 and the changes were associated with these sociodemographic transitions. Continued investments in girls' education and prenatal care have the potential of reducing preterm birth rate.
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