Evidence map›Paper›PMID 32226732›Full record

ArticlePreventive medicine reports2020

Maternal tobacco use: A third-trimester risk factor for small-for-gestational-age pregnancy outcome.

Steven H Lamm, Hamid Ferdosi, Isabella J Boroje, Nana Ama Afari-Dwamena, Lu Qian, Elisabeth Dissen Dash, Ji Li, Rusan Chen, Manning Feinleib

Erratum issuedAbstract read
In one paragraph

Article in Preventive medicine reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
–field-weighted citation impact
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

12 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Cannabis and Nicotine Substance Use Coercion During the Perinatal Period.Women's health reports (New Rochelle, N.Y.) · 2025
    Article
  5. Article
  6. Prenatal tobacco exposure associations with physical health and neurodevelopment in the ABCD cohort.Health psychology : official journal of the Division of Health Psychology, American Psychological Association · 2023
    Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors.

Steven H LammCenter for Epidemiology and Maternal and Child Health, Consultants in Epidemiology and Occupational Health (CEOH), Washington, DC, USA.
Hamid FerdosiCenter for Epidemiology and Maternal and Child Health, Consultants in Epidemiology and Occupational Health (CEOH), Washington, DC, USA.
Isabella J BorojeCenter for Epidemiology and Maternal and Child Health, Consultants in Epidemiology and Occupational Health (CEOH), Washington, DC, USA.
Nana Ama Afari-DwamenaCenter for Epidemiology and Maternal and Child Health, Consultants in Epidemiology and Occupational Health (CEOH), Washington, DC, USA.
Lu QianCenter for Epidemiology and Maternal and Child Health, Consultants in Epidemiology and Occupational Health (CEOH), Washington, DC, USA.
Elisabeth Dissen DashCenter for Epidemiology and Maternal and Child Health, Consultants in Epidemiology and Occupational Health (CEOH), Washington, DC, USA.
Ji LiDepartment of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Rusan ChenCenters for New Designs in Learning and Scholarships, Georgetown University, Washington, DC, USA.
Manning FeinleibDepartment of Epidemiology, Johns Hopkins University-Bloomberg School of Public Health, Baltimore, MD, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSmall for gestational age (SGA) is a well-known consequence of maternal smoking. Here, we newly examine the magnitude of SGA risk by week of gestational age.

methodsSingleton live births (N = 3,032,928) with recorded birth weight, gestational age (22-44 weeks), and maternal tobacco use (Y/N) were categorized as to SGA (Y/N), based on 10th percentile gender-specific weights-for-age.

resultsSGA prevalence among tobacco users (19.5%) and non-users (9.1%) yielded a significant SGA prevalence rate ratio of 2.15 (2.13-2.16) and a significant adjusted odds ratio of 2.36 (2.34-2.38). The tobacco non-users' rate was steadily near 9% across the week 22-44 gestational age range. The tobacco users' rate was steady until week 33 when it rose monotonically through week 37 to about 20% at week 38 and remained high. This pattern for SGA by gestational week was similar for prevalence rates and adjusted ORs. Tobacco use only through week 33 was not seen to be an SGA risk factor. The magnitude of tobacco use as an SGA risk factor for late third trimester births increased during the period of preterm birth and became fully evident with a two-fold risk for full term infants.

conclusionWe newly report the temporal pattern of tobacco-related SGA by week of gestational age. Tobacco-related SGA was only seen for late third trimester births - increasing during weeks 33-37 with a doubling during weeks 38-44. This pattern, informative for issues of mechanism, highlights the potential benefit of extending tobacco cessation programs through the third trimester of pregnancy.

Indexed as

Maternal tobacco exposureSmall-for-gestational age (SGA)Third-trimester

Identifiers

PMID32226732
PMCPMC7093827

What OpenQuestion holds

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LicenceCC BY-NC-ND
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Registered trials

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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.