SynthesisRevista paulista de pediatria : orgao oficial da Sociedade de Pediatria de Sao Paulo2025
Asthma risk in young people who attended chlorinated swimming pools in early childhood.
Synthesis in Revista paulista de pediatria : orgao oficial da Sociedade de Pediatria de Sao Paulo, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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.
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.
Who cites it
2 citing papers in PubMed.
- Mechanistic advances in the regulation of asthma by different exercise modalities: an integrative perspective on exercise load characteristics and asthma heterogeneity.Frontiers in physiology · 2026Review
- Monitoring Lung Function of Asthmatic Swimmers in Public Swimming Pools.Open respiratory archivesArticle
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveThe aim of this study was to evaluate the association between exposure to volatile chlorination by-products from swimming during early childhood and the subsequent development of asthma. DATA SOURCE: This systematic review was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. The review protocol was registered in the International Prospective Register of Systematic Reviews (PROSPERO) under CRD42021291850. Searches were carried out in the following electronic databases: PubMed, Cochrane Library, Google Scholar, and ScienceDirect, using the terms "children in early childhood," "swimming in a chlorinated pool," "exposed and unexposed," and "asthma risk," covering studies published between 2003 and 2020. The review included cohort and cross-sectional studies of individuals who swam in chlorinated pools during early childhood. The methodological quality of the studies was evaluated for risk of bias. DATA SYNTHESIS: Out of 6865 studies screened, six met the inclusion criteria, involving 4058 subjects and 310 asthma events (2365 in the exposure group and 1693 in the control group). The combined effect, expressed as an odds ratio for asthma risk in all included studies, was 1.09 (95%CI 0.67-1.77; p=0.740).
conclusionsThis is the first systematic review to comprehensively evaluate the association between swimming in chlorinated pools and the risk of developing asthma. No association was found between childhood swimming in chlorinated pools and the risk of asthma development.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.