Table 5

Multivariable analysis for the risk of current asthma in cross-country skiers represented as ORs with 95% CIs

Current asthmaNon-allergic asthma
n=55
Allergic asthma
n=36
OR95% CIP valueOR95% CIP valueOR95% CIP value
Age1.061.01 to 1.110.0111.020.97 to 1.070.4111.081.02 to 1.140.011
100 hours more training per year1.291.11 to 1.500.0011.331.12 to 1.580.0011.100.89 to 1.360.379
Parents or siblings with asthma2.411.42 to 4.080.0011.810.98 to 3.330.0572.471.15 to 5.300.021
Allergic rhinitis2.141.27 to 3.600.0040.640.34 to 1.190.64216.384.82 to 55.67<0.001