Evidence map›Paper›PMID 30668648›Full record

ArticleAmerican journal of epidemiology2019

Comparison of the Associations of Early-Life Factors on Wheezing Phenotypes in Preterm-Born Children and Term-Born Children.

Sarah J Kotecha, W John Watkins, John Lowe, Raquel Granell, A John Henderson, Sailesh Kotecha

Abstract readComparative Study
In one paragraph

Article in American journal of epidemiology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 2 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

18 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Machine learning-derived asthma and allergy trajectories in children: a systematic review and meta-analysis.European respiratory review : an official journal of the European Respiratory Society · 2025
    Pooled it
  2. Pooled it
  3. Human milk feeding and wheeze in Black infants born preterm.Journal of perinatology : official journal of the California Perinatal Association · 2022
    Trial
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Clinical predictors of wheeze trajectories and associations with allergy in Asian children.Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology · 2023
    Article
  10. Review
  11. Article
  12. Article
  13. Modeling Wheezing Spells Identifies Phenotypes with Different Outcomes and Genetic Associates.American journal of respiratory and critical care medicine · 2022
    Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
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.

Sarah J KotechaDepartment of Child Health, School of Medicine, Cardiff University, Cardiff, United Kingdom.
W John WatkinsDepartment of Child Health, School of Medicine, Cardiff University, Cardiff, United Kingdom.
John LoweDepartment of Child Health, School of Medicine, Cardiff University, Cardiff, United Kingdom.
Raquel GranellPopulation Health Sciences, Bristol Medical School, University of Bristol, Bristol, United Kingdom.
A John HendersonPopulation Health Sciences, Bristol Medical School, University of Bristol, Bristol, United Kingdom.
Sailesh KotechaDepartment of Child Health, School of Medicine, Cardiff University, Cardiff, United Kingdom.

Funding

Medical Research Council MR/M022552/1Wellcome TrustWellcome Trust 102215/2/13/2
6 · The paper itself

Abstract

Although respiratory symptoms, including wheezing, are common in preterm-born subjects, the natural history of the wheezing phenotypes and the influence of early-life factors and characteristics on phenotypes are unclear. Participants from the Millennium Cohort Study who were born between 2000 and 2002 were studied at 9 months and at 3, 5, 7, and 11 years. We used data-driven methods to define wheezing phenotypes in preterm-born children and investigated whether the association of early-life factors and characteristics with wheezing phenotypes was similar between preterm- and term-born children. A total of 1,049/1,502 (70%) preterm-born children and 12,307/17,063 (72%) term-born children had recent wheeze data for 3 or 4 time points. Recent wheeze was more common at all time points in the preterm-born group than in term-born group. Four wheezing phenotypes were defined for both groups: no/infrequent, early, persistent, and late. Early-life factors and characteristics, especially antenatal maternal smoking, atopy, and male sex, were associated with increased rates for all phenotypes in both groups, and breastfeeding was protective in both groups, except late wheeze in the preterm group. Preterm-born children had similar phenotypes to term-born children. Although early-life factors and characteristics were similarly associated with the wheezing phenotypes in both groups, the preterm-born group had higher rates of early and persistent wheeze. However, a large proportion of preterm-born children had early wheeze that resolved with time.

Indexed as

ChildChild, PreschoolFemaleHumansInfantMaleMaternal ExposurePhenotypePregnancyPremature BirthPrenatal Exposure Delayed EffectsRespiratory SoundsRisk FactorsTerm BirthMillennium Cohort Studyprematuritywheeze

Identifiers

PMID30668648
PMCPMC6395162

What OpenQuestion holds

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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.