Evidence map›Paper›PMID 30026189›Full record

ArticleTobacco control2019

Secondhand smoke exposure during pregnancy: a cross-sectional analysis of data from Demographic and Health Survey from 30 low-income and middle-income countries.

Sian Reece, Camille Morgan, Mark Parascandola, Kamran Siddiqi

Open access · greenAbstract read
In one paragraph

Article in Tobacco control, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 1 pooled it
3.6field-weighted citation impact, top 7% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

31 citing papers in PubMed, 1 synthesis or guideline pooled it, 66 citations in OpenAlex.

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  18. The challenge of tobacco and nicotine use among women.Revista da Associacao Medica Brasileira (1992) · 2023
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 2 institutions in 2 countries.

Sian ReeceDepartment of Health Science, University of York, York, UK.ORCID 0000-0002-4563-6972
Camille MorganTobacco Control Research Branch, National Cancer Institute, Rockville, Maryland, USA.
Mark ParascandolaTobacco Control Research Branch, National Cancer Institute, Rockville, Maryland, USA.
Kamran SiddiqiDepartment of Health Science, University of York, York, UK.
National Cancer Institute · USUniversity of York · GB

Funding

Cancer Research UK 13007Medical Research Council MR/J000248/1Medical Research Council MR/M020533/1Medical Research Council MR/P008941/1
6 · The paper itself

Abstract

backgroundSecondhand smoke (SHS) exposure during pregnancy increases the risk of infant stillbirth, congenital malformations, low birth weight and respiratory illnesses. However, little is known about the extent of SHS exposure during pregnancy. We assessed the prevalence of SHS exposure in pregnant women in low-income and middle-income countries (LMICs).

methodsWe used Demographic and Health Survey data collected between 2008 and 2013 from 30 LMICs. We estimated weighted country-specific prevalence of SHS exposure among 37 427 pregnant women. We accounted for sampling weights, clustering and stratification in the sampling methods. We also explored associations between sociodemographic variables and SHS exposure in pregnant women using pairwise multinomial regression model.

findingsThe prevalence of daily SHS exposure during pregnancy ranged from 6% (95% CI 5% to 7%) (Nigeria) to 73% (95% CI 62% to 81%) (Armenia) and was greater than active tobacco use in pregnancy across all countries studied. Being wealthier, maternal employment, higher education and urban households were associated with lower SHS exposure in full regression models. SHS exposure in pregnant women closely mirrors WHO Global Adult Tobacco Survey male active smoking patterns. Daily SHS exposure accounted for a greater population attributable fraction of stillbirths than active smoking, ranging from 1% of stillbirths (Nigeria) to 14% (Indonesia).

interpretationWe have demonstrated that SHS exposure during pregnancy is far more common than active smoking in LMICs, accounting for more stillbirths than active smoking. Protecting pregnant women from SHS exposure should be a key strategy to improve maternal and child health.

Indexed as

SmokingTobacco Smoke PollutionAdultCross-Sectional StudiesDeveloping CountriesEnvironmental ExposureFamily CharacteristicsFemaleHumansMalePregnancyPregnancy OutcomePrevalenceSocioeconomic FactorsStillbirthTobacco Smoke Pollutionglobal healthlow/middle income countrysecondhand smokesurveillance and monitoring

Identifiers

PMID30026189
PMCPMC10442074
OpenAlexW2884893320

What OpenQuestion holds

Textmetadata
LicenceTDM
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Registered trials

None linked

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.