Evidence map›Paper›PMID 25379671›Full record

ArticlePloS one2014

Asthma trajectories in early childhood: identifying modifiable factors.

Lidia Panico, Beth Stuart, Mel Bartley, Yvonne Kelly

Abstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing 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

32 citing papers in PubMed, 1 synthesis or guideline 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. Identification of two early life eczema and non-eczema phenotypes with high risk for asthma development.Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology · 2019
    Trial
  3. Trial
  4. Article
  5. Social inequalities in childhood asthma.The World Allergy Organization journal · 2024
    Review
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  11. Early-life residential exposure to moisture damage is associated with persistent wheezing in a Finnish birth cohort.Pediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and Immunology · 2022
    Article
  12. Asthma clustering methods: a literature-informed application to the children's health study data.The Journal of asthma : official journal of the Association for the Care of Asthma · 2022
    Review
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  20. Longitudinal Phenotypes of Respiratory Health in a High-Risk Urban Birth Cohort.American journal of respiratory and critical care medicine · 2019
    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

4 authors.

Lidia PanicoInstitut National d'Etudes Démographiques, Paris, France.
Beth StuartFaculty of Medicine, University of Southampton, Southampton, United Kingdom.
Mel BartleyInternational Centre for Lifecourse Studies, Department for Epidemiology and Population Health, University College London, London, United Kingdom.
Yvonne KellyInternational Centre for Lifecourse Studies, Department for Epidemiology and Population Health, University College London, London, United Kingdom.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThere are conflicting views as to whether childhood wheezing represents several discreet entities or a single but variable disease. Classification has centered on phenotypes often derived using subjective criteria, small samples, and/or with little data for young children. This is particularly problematic as asthmatic features appear to be entrenched by age 6/7. In this paper we aim to: identify longitudinal trajectories of wheeze and other atopic symptoms in early childhood; characterize the resulting trajectories by the socio-economic background of children; and identify potentially modifiable processes in infancy correlated with these trajectories. DATA AND

methodsThe Millennium Cohort Study is a large, representative birth cohort of British children born in 2000-2002. Our analytical sample includes 11,632 children with data on key variables (wheeze in the last year; ever hay-fever and/or eczema) reported by the main carers at age 3, 5 and 7 using a validated tool, the International Study of Asthma and Allergies in Childhood module. We employ longitudinal Latent Class Analysis, a clustering methodology which identifies classes underlying the observed population heterogeneity.

resultsOur model distinguished four latent trajectories: a trajectory with both low levels of wheeze and other atopic symptoms (54% of the sample); a trajectory with low levels of wheeze but high prevalence of other atopic symptoms (29%); a trajectory with high prevalence of both wheeze and other atopic symptoms (9%); and a trajectory with high levels of wheeze but low levels of other atopic symptoms (8%). These groups differed in terms of socio-economic markers and potential intervenable factors, including household damp and breastfeeding initiation.

conclusionUsing data-driven techniques, we derived four trajectories of asthmatic symptoms in early childhood in a large, population based sample. These groups differ in terms of their socio-economic profiles. We identified correlated intervenable pathways in infancy, including household damp and breastfeeding initiation.

Indexed as

AsthmaBreast FeedingChildChild, PreschoolCluster AnalysisCohort StudiesEnglandFemaleHousingHumansInfantLongitudinal StudiesMaleModels, StatisticalPhenotypePrevalence

Identifiers

PMID25379671
PMCPMC4224405

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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.