Evidence map›Paper›PMID 33062301›Full record

ArticleBMJ open sport & exercise medicine2020

Haemoglobin, iron status and lung function of adolescents participating in organised sports in the Finnish Health Promoting Sports Club Study.

Kerttu Toivo, Pekka Kannus, Sami Kokko, Lauri Alanko, Olli J Heinonen, Raija Korpelainen, Kai Savonen, Harri Selänne, Tommi Vasankari, Lasse Kannas and 4 more

Open access · goldAbstract read
In one paragraph

Article in BMJ open sport & exercise medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.6field-weighted citation impact, top 27% 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

3 citing papers in PubMed, 6 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

14 authors at 8 institutions in 1 country.

Kerttu ToivoTampere Research Center of Sports Medicine, Ukk Institute, Tampere, Finland.ORCID 0000-0002-4573-1937
Pekka KannusTampere Research Center of Sports Medicine, Ukk Institute, Tampere, Finland.
Sami KokkoFaculty of Sport and Health Sciences, University of Jyvaskyla, Jyvaskyla, Finland.
Lauri AlankoClinic for Sports and Exercise Medicine, Helsingin Yliopisto, Helsinki, Finland.
Olli J HeinonenPaavo Nurmi Centre & Unit for Health and Physical Activity, University of Turku, Turku, Finland.
Raija KorpelainenDepartment of Sports and Exercise Clinic, Oulu Deaconess Foundation, Oulu, Finland.
Kai SavonenKuopio Research Institute of Exercise Medicine, Kuopio, Finland.
Harri SelänneDepartment of Psychology, University of Jyväskylä, Jyvaskyla, Finland.
Tommi VasankariUkk Institute for Health Promotion Research, Tampere, Finland.
Lasse KannasFaculty of Sport and Health Sciences, University of Jyvaskyla, Jyvaskyla, Finland.
Urho M KujalaFaculty of Sport and Health Sciences, University of Jyvaskyla, Jyvaskyla, Finland.
Jari VillbergFaculty of Sport and Health Sciences, University of Jyvaskyla, Jyvaskyla, Finland.
Onni NiemeläDepartment of Laboratory Medicine and Medical Research Unit, Seinajoki Central Hospital and University of Tampere, Seinajoki, Finland.
Jari ParkkariTampere Research Center of Sports Medicine, Ukk Institute, Tampere, Finland.
University of Jyväskylä · FIUrho Kaleva Kekkonen Institute · FIOulu University Hospital · FISeinäjoki University of Applied Sciences · FITampere University Hospital · FIUniversity of Eastern Finland · FIUniversity of Helsinki · FIUniversity of Turku · FI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo compare laboratory test results and lung function of adolescent organised sports participants (SP) with non-participants (NP).

methodsIn this cross-sectional study, laboratory tests (haemoglobin, iron status), and flow-volume spirometry were performed on SP youths (199 boys, 203 girls) and their NP peers (62 boys, 114 girls) aged 14-17.

resultsHaemoglobin concentration <120/130 g/L was found in 5.8% of SP and 5.1% NP (OR 1.20, 95% CI 0.54 to 2.68). Ferritin concentration below 15 µg/L was found in 22.7% of both SP and NP girls. Among boys ferritin <30 µg/L was found in 26.5% of SP and 30.2% of NP (OR 0.76, 95% CI 0.40 to 1.47). Among SP iron supplement use was reported by 3.5% of girls and 1.5% of boys. In flow-volume spirometry with bronchodilation test, 7.0% of SP and 6.4% of NP had asthma-like findings (OR 1.17, 95% CI 0.54 to 2.54); those using asthma medication, that is, 9.8% of SP and 5.2% of NP were excluded from the analysis.

conclusionsScreening for iron deficiency is recommended for symptomatic persons and persons engaging in sports. Lung function testing is recommended for symptomatic persons and persons participating in sports in which asthma is more prevalent.

Indexed as

AdolescentAsthmaIron metabolismSports & exercise medicine

Identifiers

PMID33062301
PMCPMC7520547
OpenAlexW3083196119

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.