A1 Refereed original research article in a scientific journal
Haemoglobin, iron status and lung function of adolescents participating in organised sports in the Finnish Health Promoting Sports Club Study
Authors: Kerttu Toivo, Pekka Kannus, Sami Kokko, Lauri Alanko, Olli J Heinonen, Raija Korpelainen, Kai Savonen, Harri Selänne, Tommi Vasankari, Lasse Kannas, Urho M Kujala, Jari Villberg, Onni Niemelä, Jari Parkkari
Publisher: BMJ PUBLISHING GROUP
Publication year: 2020
Journal: BMJ Open Sport and Exercise Medicine
Journal name in source: BMJ OPEN SPORT & EXERCISE MEDICINE
Journal acronym: BMJ OPEN SPORT EXERC
Article number: ARTN e000804
Volume: 6
Issue: 1
Number of pages: 6
ISSN: 2398-9459
DOI: https://doi.org/10.1136/bmjsem-2020-000804
Self-archived copy’s web address: https://research.utu.fi/converis/portal/detail/Publication/51471930
Objectives
To compare laboratory test results and lung function of adolescent organised sports participants (SP) with non-participants (NP).
Methods
In 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.
Results
Haemoglobin 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 g/L was found in 22.7% of both SP and NP girls. Among boys ferritin <30 g/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.
Conclusions
Screening 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.
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