Asthma and Asthma Medication Are Common among Recreational Athletes Participating in Endurance Sport Competitions

Table 2

Basic characteristics of the study population in each of the three competitions: CCR Lidingöloppet, CCS Vasaloppet, and OWS Vansbrosimningen, and the pooled study population.

	CCR Lidingöloppet ()		CCS Vasaloppet ()		OWS Vansbrosimningen ()		Pooled (^2)
		(%)		(%)		(%)		(%)
Age^1	5,921	41 (34–48)^1	3,153	42 (33–50)^1	1,663	42 (33–50)^1	10,076	42 (34–49)^1
Female	5,790	1,764 (30)	3,083	577 (19)	1,598	706 (44)	9,827	2,849 (29)
Current smoker	5,893	108 (2)	3,149	31 (1)	1,661	39 (2)	10,043	167 (2)
Physician-diagnosed asthma	5,824	979 (17)	3,138	522 (17)	1,651	310 (20)	9,954	1,692 (17)
Self-reported asthma^3	5,823	658 (12)	3,136	341 (11)	1,650	214 (14)	9,950	1,135 (12)
Allergic rhinitis	5,921	2,161 (37)	3,153	1,024 (33)	1,661	559 (35)	10,074	2,503 (36)
Family history of asthma	5,531	1,185 (22)	2,979	608 (21)	1,562	351 (23)	9,456	1,987 (22)
Training^1 (hours:minutes/week)	5,848	4:00 (2:40–5:00)^1	3,012	5:00 (3:00–6:00)^1	1,125	4:00 (3:00–6:00)^1	9,419	4:00 (3:00–5:30)^1

¹Age and training presented as medians with interquartile ranges. ²Only unique subjects included in the pooled study population. ³Physician-diagnosed asthma and use of asthma medication during the last 12 months. denotes the number of answers.