Evidence map›Paper›PMID 21195940›Full record

ArticleAnnals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology2011

Relationship of asthma management, socioeconomic status, and medication insurance characteristics to exacerbation frequency in children with asthma.

Wendy J Ungar, J Michael Paterson, Tara Gomes, Peter Bikangaga, Milton Gold, Teresa To, Anita L Kozyrskyj

Open access · greenAbstract read
In one paragraph

Article in Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed, 1 pooled it
1.5field-weighted citation impact, top 18% 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

39 citing papers in PubMed, 1 synthesis or guideline pooled it, 81 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. BetaFrontiers in medicine · 2026
    Review
  5. Article
  6. Article
  7. Review
  8. Prediction of Asthma Exacerbations in Children.Journal of personalized medicine · 2023
    Review
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  10. Article
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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

7 authors at 5 institutions in 1 country.

Wendy J UngarChild Health Evaluative Sciences, The Hospital for Sick Children, Toronto, Ontario, Canada; Department of Health Policy, Management, and Evaluation, University of Toronto, Ontario, Canada; Institute for Clinical Evaluative Sciences, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada.
J Michael Paterson
Tara Gomes
Peter Bikangaga
Milton Gold
Teresa To
Anita L Kozyrskyj
Hospital for Sick Children · CAHealth Sciences Centre · CAInstitute for Clinical Evaluative Sciences · CAUniversity of Alberta · CAUniversity of Toronto · CA

Funding

CIHR 37919-1CIHR 77437
6 · The paper itself

Abstract

backgroundless than 25% of asthmatic children are well controlled.

objectiveto identify factors associated with asthma exacerbation causing emergency department (ED) visits or hospitalizations related to health status, socioeconomic status (SES), and drug insurance.

methodsin this retrospective cohort study, complete data were collected on 490 asthmatic children regarding demographics, SES, drug plan characteristics, health status, health resource use, and symptoms. Interview data were linked to administrative data on asthma ED visits and hospitalizations occurring in the following year. Multiple Poisson regression identified independent variables associated with ED visits or hospitalizations in the full cohort and in a subgroup with prescription drug insurance.

resultsyounger age, previous emergency visits, nebulizer use, pet ownership, and receipt of asthma education but not an action plan were significantly associated with more frequent exacerbations. In the full cohort, children with high income adequacy had 28% fewer exacerbations than did children with low income adequacy. In the subgroup with drug insurance, girls had 26% fewer exacerbations than did boys, and children with food, drug, or insect allergies had 52% more exacerbations than did children without allergies. Children of families with annual insurance deductibles greater than $90 had 95% fewer exacerbations. Every percentage increase in the proportion of income spent out-of-pocket on asthma medications was associated with a 14% increase in exacerbations.

conclusionsasthma history, disease management factors, and SES were associated with exacerbations requiring urgent care. In families with drug plans, the magnitude of asthma medication cost-sharing as a proportion of household income, rather than income alone, was significantly associated with exacerbations.

Indexed as

Insurance, Pharmaceutical ServicesSocial ClassAdolescentAsthmaChildChild, PreschoolCohort StudiesCost SharingFemaleHumansInfantMaleRetrospective Studies

Identifiers

PMID21195940
PMCPMC4940175
OpenAlexW2143512911

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.