Evidence map›Paper›PMID 25890001›Full record

ArticleEnvironmental health : a global access science source2015

Swimming pool attendance is related to asthma among atopic school children: a population-based study.

Martin Andersson, Linnea Hedman, Gunnar Nordberg, Bertil Forsberg, Kåre Eriksson, Eva Rönmark

Open access · goldAbstract read
In one paragraph

Article in Environmental health : a global access science source, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
2.5field-weighted citation impact, top 11% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 35 citations in OpenAlex.

  1. Asthma risk in young people who attended chlorinated swimming pools in early childhood.Revista paulista de pediatria : orgao oficial da Sociedade de Pediatria de Sao Paulo · 2025
    Pooled it
  2. Review
  3. Exercise-Induced Asthma: Managing Respiratory Issues in Athletes.Journal of functional morphology and kinesiology · 2024
    Review
  4. Review
  5. Article
  6. S3 guideline Allergy Prevention.Allergologie select · 2022
    Article
  7. Article
  8. Article
  9. Early life swimming pool exposure and asthma onset in children - a case-control study.Environmental health : a global access science source · 2018
    Article
  10. Article
  11. Article
  12. 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 at 2 institutions in 1 country.

Martin AnderssonDepartment of Public Health and Clinical Medicine, Occupational and Environmental Medicine, Umeå University, S-90187, Umeå, Sweden. martin.andersson@envmed.umu.se.
Linnea HedmanDepartment of Public Health and Clinical Medicine, Occupational and Environmental Medicine, Umeå University, S-90187, Umeå, Sweden. linnea.hedman@nll.se.
Gunnar NordbergDepartment of Public Health and Clinical Medicine, Occupational and Environmental Medicine, Umeå University, S-90187, Umeå, Sweden. gunnar.nordberg@envmed.umu.se.
Bertil ForsbergDepartment of Public Health and Clinical Medicine, Occupational and Environmental Medicine, Umeå University, S-90187, Umeå, Sweden. bertil.forsberg@envmed.umu.se.
Kåre ErikssonDepartment of Public Health and Clinical Medicine, Occupational and Environmental Medicine, Umeå University, S-90187, Umeå, Sweden. kare.eriksson@envmed.umu.se.
Eva RönmarkDepartment of Public Health and Clinical Medicine, Occupational and Environmental Medicine, Umeå University, S-90187, Umeå, Sweden. eva.ronmark@nll.se.
Umeå University · SEVästerbotten County · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundBy-products of water disinfectants have been suggested to cause asthma, especially in atopic children. However, studies on indoor swimming pool attendance and asthma in children have presented conflicting results. The present study examined the relationship between indoor swimming pool attendance and asthma among sensitized and non-sensitized children aged 11-12 years.

methodsAn extended ISAAC questionnaire was sent to the families of all children attending fifth or sixth grade, aged 11-12 years, in two municipalities in Northern Sweden in 2010. A total of 1866 participated (96% of those invited) in the questionnaire study and 1652 (89%) also participated in skin prick testing for 10 standard airborne allergens. Asthma was defined as physician-diagnosed asthma in combination with wheeze or use of asthma medication in the last 12 months. Current swimming pool attendance was reported as ≥ 1/week or <1/week. Logistic regression models were used for data analysis.

resultsThe prevalence of current asthma was 8.9% (10.0% of boys; 7.9% of girls) and 14% had attended indoor pools ≥ 1/week. Children currently attending swimming pools ≥ 1/week had an increased risk of current asthma. Stratified analyses for allergic sensitization adjusted for sex, parental smoking, parental asthma, and damp housing, showed a statistically significant association for current asthma only among sensitized subjects (OR 95% CI 1.90 1.09-3.32). No association was found between current pool attendance and wheeze, sensitization, rhinitis or eczema.

conclusionsThe present study supports the proposed link between indoor swimming pool attendance and asthma in sensitized children.

Indexed as

Swimming PoolsAsthmaChildCohort StudiesFemaleHumansHypersensitivityMalePrevalenceSweden

Identifiers

PMID25890001
PMCPMC4411937
OpenAlexW2096810542

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.