Evidence map›Paper›PMID 29957275›Full record

ArticleRespiratory medicine2018

Prenatal and postnatal tobacco smoke exposure and risk of severe bronchiolitis during infancy.

Leili Behrooz, Diana S Balekian, Mohammad Kamal Faridi, Janice A Espinola, Liam P Townley, Carlos A Camargo

Open access · bronzeAbstract read
In one paragraph

Article in Respiratory medicine, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
3.2field-weighted citation impact, top 8% 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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 33 citations in OpenAlex.

  1. Housing Risk Factors Associated with Respiratory Disease: A Systematic Review.International journal of environmental research and public health · 2021
    Pooled it
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
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  10. Observational
  11. Article
  12. Nicotine exposure during pregnancy programs osteopenia in male offspring ratsFASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2019
    Article
  13. Review
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  15. Article
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

6 authors at 2 institutions in 1 country.

Leili BehroozDepartment of Emergency Medicine, Massachusetts General Hospital, Boston, MA, USA. Electronic address: lbehrooz@mah.harvard.edu.
Diana S BalekianAsthma and Allergy Affiliates, Salem, MA, USA.
Mohammad Kamal FaridiDepartment of Emergency Medicine, Massachusetts General Hospital, Boston, MA, USA.
Janice A EspinolaDepartment of Emergency Medicine, Massachusetts General Hospital, Boston, MA, USA.
Liam P TownleyDepartment of Emergency Medicine, Massachusetts General Hospital, Boston, MA, USA.
Carlos A CamargoDepartment of Emergency Medicine, Massachusetts General Hospital, Boston, MA, USA; Division of Rheumatology, Allergy, and Immunology, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA; Harvard Medical School, Boston, MA, USA.
Massachusetts General Hospital · USHarvard University · US

Funding

The HSPH Education and Research Center of Occupational Safety and HealthT42OH008416 · OH · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI CHRISTIANI, DAVID C · 2005 to 2025
$30.5M
Research Training in Pulmonary Immunology and Allergy at MGHT32HL116275 · NHLBI · MASSACHUSETTS GENERAL HOSPITAL · PI David C Christiani, ANDREW D LUSTER · 2013 to 2026
$8.6M
NHLBI NIH HHS T32 HL116275NIOSH CDC HHS T42 OH008416
6 · The paper itself

Abstract

backgroundMaternal prenatal smoking has adverse effects on the growing fetus including those of respiratory nature. Although postnatal smoke exposure is a risk factor for respiratory infections, the effects of prenatal smoking independent of postnatal smoke exposure are less established. We hypothesized that both maternal prenatal smoking, and postnatal smoke exposure are risk factors for severe bronchiolitis during infancy.

methodsWe performed a case-control study of 1353 children born between 1996 and 2011 at a single teaching hospital. Cases were admitted to the same hospital for bronchiolitis during infancy. Maternal prenatal smoking was collected from birth records. Postnatal smoke exposure was collected from review of electronic health records. Multivariable logistic regression was used to evaluate the independent associations of the two smoking variables with severe bronchiolitis.

results6% of cases were exposed to maternal prenatal smoking, compared with 4% of controls (P = 0.10). Postnatal smoke exposure was present in the households of 17% of cases compared with 3% of controls (P < 0.001). In a multivariable model with both smoking variables and adjustment for 10 covariates, maternal prenatal smoking was not a significant risk factor for severe bronchiolitis (adjusted OR = 1.02, 95%CI 0.56-1.84). By contrast, postnatal smoke exposure was associated with >300% increased odds (adjusted OR 4.19, 95%CI 2.51-6.98).

conclusionsAlthough maternal prenatal smoking has many known adverse effects, it was not associated with increased odds of severe bronchiolitis in either unadjusted or multivariable analyses. Postnatal smoke exposure was a consistently strong risk factor. Our findings support ongoing efforts to decrease infant exposure to ambient smoke.

Indexed as

Prenatal Exposure Delayed EffectsBronchiolitisCase-Control StudiesElectronic Health RecordsEnvironmental ExposureFemaleHumansInfantMaleMaternal-Fetal ExchangeMothersPregnancyRisk FactorsSmokingTobacco Smoke PollutionTobacco Smoke PollutionBronchiolitisCigarette smokingPostnatal smokePregnancyPrenatal smoking

Identifiers

PMID29957275
PMCPMC6056008
OpenAlexW2804779670

What OpenQuestion holds

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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.