Evidence map›Paper›PMID 33002318›Full record

ArticlePediatric pulmonology2020

Prevalence of exercise-induced bronchoconstriction and laryngeal obstruction in adolescent athletes.

Karin Ersson, Elisabet Mallmin, Andrei Malinovschi, Katarina Norlander, Henrik Johansson, Leif Nordang

Open access · hybridAbstract read
In one paragraph

Article in Pediatric pulmonology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 1 pooled it
2.7field-weighted citation impact, top 8% 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

25 citing papers in PubMed, 1 synthesis or guideline pooled it, 46 citations in OpenAlex.

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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

6 authors at 1 institution in 1 country.

Karin ErssonDepartment of Medical Sciences, Uppsala University, Sweden.ORCID 0000-0003-3185-3316
Elisabet MallminDepartment of Surgical Sciences, Uppsala University, Sweden.ORCID 0000-0002-5023-9365
Andrei MalinovschiDepartment of Medical Sciences, Uppsala University, Sweden.ORCID 0000-0002-4098-7765
Katarina NorlanderDepartment of Surgical Sciences, Uppsala University, Sweden.
Henrik JohanssonDepartment of Medical Sciences, Uppsala University, Sweden.ORCID 0000-0001-8305-5098
Leif NordangDepartment of Surgical Sciences, Uppsala University, Sweden.
Uppsala University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo study the prevalence of exercise-induced bronchoconstriction (EIB) and exercise-induced laryngeal obstruction (EILO) in adolescent athletes.

methodsAll adolescents (n = 549) attending first year at a sports high school in 2016 and 2017, were invited to answer a questionnaire on respiratory symptoms. The 367 responding participants were divided into two groups based on whether they reported exercise-induced dyspnea (dyspnea group) or not (nondyspnea group). Randomly selected participants in each group were invited to undergo two standardized exercise tests, an EIB test and a continuous laryngoscopy exercise (CLE) test, to investigate EILO.

resultsIn total, 98 participants completed an EIB test, 75 of whom also completed a CLE test. Positive EIB tests: eight of 41 in the dyspnea group and 16 of 57 in the nondyspnea group. Positive CLE tests: 5 of 34 in the dyspnea group and three of 41 in the nondyspnea group. The estimated prevalence of EIB was 23.1% (95% confidence interval [CI]: 14.5-33.8) and of EILO 8.1% (95% CI: 2.5-18.5) in the whole study population. No differences in prevalence of EIB or EILO were found between the dyspnea and the nondyspnea groups.

conclusionEIB was highly prevalent in this cohort of adolescent athletes. EILO was less prevalent, but represents an important differential diagnosis to EIB. Self-reported exercise-induced dyspnea is a weak indicator for both EIB and EILO and standardized testing should be provided.

Indexed as

AdolescentAirway ObstructionAsthma, Exercise-InducedAthletesBronchoconstrictionDiagnosis, DifferentialDyspneaExerciseExercise TestFemaleHumansLaryngeal DiseasesLaryngoscopyMalePrevalenceSurveys and Questionnairesadolescentsdyspneaexercise testshigh school athletes

Identifiers

PMID33002318
PMCPMC7702091
OpenAlexW3089685728

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.