Evidence map›Paper›PMID 18022868›Full record

ArticleBirth defects research. Part A, Clinical and molecular teratology2008

Maternal smoking and the risk for clubfoot in infants.

Kathryn C Dickinson, Robert E Meyer, Jonathan Kotch

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Birth defects research. Part A, Clinical and molecular teratology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
–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

19 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Research progress on the effects of adverse exposure during pregnancy on skeletal muscle function in the offspring.Zhejiang da xue xue bao. Yi xue ban = Journal of Zhejiang University. Medical sciences · 2023
    Review
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  14. Descriptive epidemiology of idiopathic clubfoot.American journal of medical genetics. Part A · 2013
    Article
  15. Article
  16. Article
  17. Article
  18. Smoking, the xenobiotic pathway, and clubfoot.Birth defects research. Part A, Clinical and molecular teratology · 2011
    Article
  19. Epidemiology of congenital idiopathic talipes equinovarus in Iowa, 1997-2005.American journal of medical genetics. Part A · 2010
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors.

Kathryn C DickinsonNorth Carolina Birth Defects Monitoring Program, Division of Public Health, Raleigh, North Carolina 27603, USA.
Robert E Meyer
Jonathan Kotch

Funding

PHS HHS U50/CCU422096
6 · The paper itself

Abstract

backgroundClubfoot is one of the most common major birth defects, with a prevalence of approximately 1 per 1,000 live births. The etiology of clubfoot is complex and not well understood, and yet, few epidemiologic studies of risk factors have been conducted. Maternal smoking has been suggested as a possible risk factor. The purpose of this population-based, case-control study was to examine the association between maternal smoking and clubfoot.

methodsData from the North Carolina Birth Defects Monitoring Program matched to North Carolina birth certificates and health services data were used in the analysis of 443 cases of clubfoot and 4,492 randomly sampled controls for the years 1999-2003. Smoking data were ascertained from the birth certificates, and the reliability of the data was assessed by comparing them with reported smoking from the North Carolina Pregnancy Risk Assessment Monitoring System. Multiple logistic regression was used to calculate crude and adjusted ORs and 95% CIs for smoking and clubfoot.

resultsThe crude OR for maternal smoking during pregnancy and clubfoot was 1.49 (95% CI: 1.15, 1.92). Controlling for maternal age, race/ethnicity, infant's sex, and timing of prenatal care initiation did not appreciably change the results (adjusted OR 1.40; 95% CI: 1.07, 1.83).

conclusionsThis study is consistent with the hypothesis that smoking during pregnancy is associated with a slightly increased risk of an infant being born with clubfoot. Further research is needed to confirm this association, and to identify potential genetic factors that may modify the magnitude of the risk.

Indexed as

Maternal BehaviorAdultClubfootFemaleHumansInfantPregnancyPrenatal CareRisk FactorsSmokingTobacco Smoke PollutionTobacco Smoke Pollution

Identifiers

PMID18022868

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.