ArticleTobacco control2017
Childhood secondhand smoke exposure and pregnancy loss in never smokers: the Guangzhou Biobank Cohort Study.
Article in Tobacco control, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
What it found
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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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Who cites it
4 citing papers in PubMed, 14 citations in OpenAlex.
- Prenatal exposure to parental smoking and infertility in sons and daughters: a cohort study.Human reproduction (Oxford, England) · 2026Article
- Secondhand Smoke Exposure of Expectant Mothers in China: Factoring in the Role of Culture in Data Collection.JMIR cancer · 2021Article
- Article
- The eMERGE genotype set of 83,717 subjects imputed to ~40 million variants genome wide and association with the herpes zoster medical record phenotype.Genetic epidemiology · 2019Article
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Authors and funding
8 authors at 4 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveStudies of secondhand smoke (SHS) exposure especially childhood SHS exposure and pregnancy loss are limited. We used baseline data of the Guangzhou Biobank Cohort Study (GBCS) to examine the association of childhood SHS exposure with a history of pregnancy loss.
methodsNever smoking women aged 50 years or above in GBCS from 2003 to 2008 were included. Propensity score matching (PSM) was used to control for confounding. Negative binomial regression and logistic regression were used to examine the association of childhood SHS, assessed by number of smokers in childhood household and frequency of exposure, with past pregnancy loss.
resultsOf 19 562 women, 56.7% (11 096) had SHS exposure during childhood. In negative binomial regression, after adjusting for age, education, past occupational dust exposure, past home fuel exposure, oral contraceptive, adulthood SHS exposure, age at first pregnancy and age at first menarche, compared to non-exposure, the incidence rate ratio of one more pregnancy loss was 1.20 (95% CI1.05 to 1.37) in those who lived with ≥2 smokers in the same household, and 1.14 (95% CI 1.04 to 1.25) in those exposed ≥5 times/week. After similar adjustment, logistic regression showed that the OR of pregnancy loss ≥2 times (versus 0 to 1 time) was 1.25 (95% CI 1.00 to 1.57) and 1.20 (95% CI 1.03 to 1.40) for high density (≥2 smokers in the same household) and frequency (≥5 times/week) of childhood exposure, respectively.
conclusionsChildhood SHS exposure was associated with higher risks of pregnancy loss in middle-aged and older Chinese women.
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