Table 2

Characteristics for elite athletes with and without asthma-like symptoms

No symptomsAsthma-like symptomsp Value§
All*More than 1†DailyExercise‡
n = 12n = 42n = 23n = 7n = 12
FEV1, % predicted105.2 (3.44)102.2 (1.79)101.2 (2.53)107.8 (4.83)103.1 (3.76)NS
FVC, % predicted110.2 (5.14)106.3 (1.73)106.6 (2.15)111.4 (3.54)107.3 (3.28)NS
eNO, ppb19.2 (2.67)23.7 (2.57)30.1 (4.13)26.7 (4.04)19.7 (2.55)NS
B eosinophils, 109/litre0.12 (0.02)0.15 (0.01)0.15 (0.02)0.17 (0.04)0.13 (0.02)NS
Atopy, n (%)7 (58.3)22 (52.4)14 (60.9)4 (57.1)6 (50.0)NS
Mannitol test, n (%)¶0 (0)5 (11.9)5 (21.7)0 (0)2 (16.7)NS
RDR0.008 (0.002)0.012 (0.002)0.017 (0.003)0.011 (0.003)0.011 (0.003)NS
Current asthma, n (%)**1 (8.3)††11 (26.2)9 (39.1)2 (28.6)5 (41.7)NS
  • *All symptoms (exercise+rest); †symptoms more than once a week; ‡only symptoms after exercise: include athletes from the different symptom groups “less than once a week”, “more than once a week” and “daily” (the group of athletes with asthma-like symptoms “less than once a week” (n = 12) is not shown); §p value between groups; ¶a positive mannitol challenge test; **asthma-like symptoms+positive mannitol test and/or current use of daily ICS; ‡‡well controlled asthmatic using ICS.

  • eNO, exhaled nitric oxide (parts per billion); FEV1, forced expiratory volume in 1 s; FVC; forced vital capacity; ICS, inhaled corticosteroids; NS, not significant; RDR, response dose ratio.