A prospective 5-year questionnaire on prevalence, incidence, and remission of asthma among Swedish elite cross-country skiers and orienteers. Participants include pupils at the Swedish National Elite Sport Schools, national team members, and former Olympic skiers.
Backgrund The prevalence of asthma among elite endurance athletes is high. Previous Swedish studies on the subject are out of date and few prospective studies exist. Objectives Describe the prevalence, incidence, and remission of asthma among Swedish elite cross-country skiers and orienteers. Participants Pupils at the Swedish National Elite Sport Schools in cross-country skiing, biathlon, ski-orienteering, and orienteering. Members of the Swedish junior and senior national teams in cross-country skiing, biathlon, ski orienteering and orienteering. Students at Swedish Ski Universities Top 80 Swedish orienteers according to the national ranking in 2011. Former Swedish Olympic athletes competing in cross-country and biathlon in the Winter Olympics until 1992. Study design Prospective annual postal questionnaire 2011-2015