Trial reportNicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco2016
A Clustered Randomized Controlled Trial to Reduce Secondhand Smoke Exposure Among Nonsmoking Pregnant Women in Sichuan Province, China.
Trial report in Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.
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.
The trial behind it
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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
10 citing papers in PubMed, 1 synthesis or guideline pooled it, 14 citations in OpenAlex.
- Smoking cessation in pregnancy: a systematic review and meta-analysis of vulnerability approaches and expectant father involvement.Public health reviews · 2026Pooled it
- Smoke-free home restrictions in Armenia and Georgia: motives, barriers and secondhand smoke reduction behaviors.European journal of public health · 2023Article
- Article
- Exposure of second hand smoke in women and children: A narrative review.Journal of family medicine and primary care · 2021Review
- Article
- Disseminating a Smoke-free Homes Program to Low Socioeconomic Status Households in the United States Through 2-1-1: Results of a National Impact Evaluation.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2020Article
- Predictors of toxic metal exposures among US women of reproductive age.Journal of exposure science & environmental epidemiology · 2019Article
- Social Environmental Influences on Smoking and Cessation: Qualitative Perspectives Among Chinese-Speaking Smokers and Nonsmokers in California.Journal of immigrant and minority health · 2017Article
- Non-smoker assertive behaviour against smoke exposure: Chinese and Korean American non-smokers.Drug and alcohol review · 2017Article
- Brief Counseling on Secondhand Smoke Exposure in Pregnant Women in Argentina and Uruguay.International journal of environmental research and public health · 2016Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 5 institutions in 2 countries.
Funding
Abstract
introductionNonsmoking pregnant women in China have significant exposure to secondhand smoke (SHS). Few interventions have focused on pregnant women reducing their SHS exposure.
methodsThis clustered randomized controlled trial, conducted at eight hospitals in Sichuan, China, compared a prenatal health education intervention with usual clinical care as a control. The primary outcome was self-reported "no SHS exposure" before and 3 months after birth. The intervention consisted of three large group educational sessions, standardized clinician advice, brief monthly follow-up calls, and educational materials and resources. A random sample of participants was biochemically validated before birth with hair nicotine, a long-term biomarker of smoke exposure.
resultsOverall, 1181 participants were randomized to intervention (n = 526) and control (n = 655) groups. More participants in the intervention group than the control group reported no SHS exposure 3 months after birth (Total: 77.9% vs. 52.6%, P < .001; Home: 81.2% vs. 53.3%, P < .001). The intervention group also had greater changes in improved smoke-free homes and SHS knowledge and attitudes. Controlling for covariates, the intervention group was less likely to report SHS exposure than the control group (Total: OR = 0.47, 95% CI = 0.31 to 0.71; Home: OR = 0.33, 95% CI = 0.21 to 0.53), and this effect was sustained 3 months after birth. The adjusted log concentration of hair nicotine for the intervention group decreased by 0.28 log µg/g more than the control group.
conclusionsOur smoke-free health education intervention for nonsmoking pregnant women significantly reduced SHS exposure before and after birth. This intervention model can become part of a standard protocol for the care of pregnant women in hospital settings.
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Registered trials
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