ArticleAmerican journal of epidemiology2014
Passive smoking and preterm birth in urban China.
Article in American journal of epidemiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers, 5 of them syntheses that pooled it.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
51 citing papers in PubMed, 5 syntheses or guidelines pooled it.
- Chemical Components in the Breast Milk of Passive Smoker Women: A Systematic Review and Health Risks Assessment.Biological trace element research · 2025Pooled it
- Association between prenatal environmental tobacco smoke exposure and preterm birth: A systematic review and meta-analysis.Acta obstetricia et gynecologica Scandinavica · 2025Pooled it
- Preterm birth among Pacific Islanders in the United States and the US-affiliated Pacific Islands: A systematic review and meta-analysis.Birth (Berkeley, Calif.) · 2023Pooled it
- Pooled it
- Pooled it
- Prenatal exposure to vanadium and lead and its impact on the risk of congenital heart defects in neonates: evidence from the Lanzhou Birth Cohort.Frontiers in public health · 2026Article
- Maternal iron and zinc and preterm labor risk: A nested case-control study based on the Lanzhou Birth Cohort Study (BBCS) in China.Asia Pacific journal of clinical nutrition · 2025Article
- Associations Between Secondhand Smoke Exposure During Pregnancy and Preterm Birth.Journal of clinical medicine · 2025Article
- Prenatal exposure to barium and arsenic and the odds of congenital heart defects in offspring: a nested case-control study within a birth cohort in Lanzhou, China.Frontiers in public health · 2025Article
- Network analysis of smoking-related sleep characteristics in Chinese adults.Annals of medicine · 2024Article
- Article
- Folate deficiency in pregnancy and the risk of preterm birth: A nested case-control study.Journal of global health · 2024Article
- Article
- Relationship between pregnant women's combined exposure to heavy metals and their offspring's congenital heart defects in Lanzhou, China.Frontiers in pediatrics · 2024Article
- Maternal seafood consumption and fetal growth: a birth cohort study in urban China.BMC pregnancy and childbirth · 2023Article
- Secondhand Smoking and the Fetus: A Bibliometric Analysis.Medical journal of the Islamic Republic of Iran · 2023Article
- Active or passive maternal smoking increases the risk of low birth weight or preterm delivery: Benefits of cessation and tobacco control policies.Tobacco induced diseases · 2023Review
- First Trimester of Pregnancy as the Sensitive Period for the Association between Prenatal Mosquito Coil Smoke Exposure and Preterm Birth.International journal of environmental research and public health · 2022Article
- Does Maternal Obesity Affect Preterm Birth? Documentary Cohort Study of Preterm in Firstborns-Silesia (Poland).Children (Basel, Switzerland) · 2022Article
- Association of the levels of heavy metals and trace elements during pregnancy with congenital heart defects in offspring: a prospective cohort study.Zhongguo dang dai er ke za zhi = Chinese journal of contemporary pediatrics · 2022Article
Corrections and comments
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Authors and funding
32 authors.
Funding
Abstract
Studies investigating the relationship between maternal passive smoking and the risk of preterm birth have reached inconsistent conclusions. A birth cohort study that included 10,095 nonsmoking women who delivered a singleton live birth was carried out in Lanzhou, China, between 2010 and 2012. Exposure to passive smoking during pregnancy was associated with an increased risk of very preterm birth (<32 completed weeks of gestation; odds ratio = 1.98, 95% confidence interval: 1.41, 2.76) but not moderate preterm birth (32-36 completed weeks of gestation; odds ratio = 0.98, 95% confidence interval: 0.81, 1.19). Risk of very preterm birth increased with the duration of exposure (P for trend = 0.0014). There was no variability in exposures by trimester. The associations were consistent for both medically indicated and spontaneous preterm births. Overall, our findings support a positive association between passive smoking and the risk of very preterm birth.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.