Parameter | Asthma severity (expert system) | p‐value# | ||
Mild | Moderate | Severe | ||
Patients n | 166 | 116 | 83 | |
Age yrs | 0.02 | |||
Mean±sd | 40±17 | 44±15 | 44±16 | |
Median (range) | 39 (8–79) | 46 (17–75) | 45 (13–77) | |
Sex female % | 57 | 66 | 53 | 0.12 |
BMI | 0.02 | |||
Mean±sd | 23±4 | 24±5 | 25±5 | |
Median (range) | 22 (14–42) | 24 (17–45) | 25 (15–43) | |
Duration of asthma yrs | 0.03 | |||
Mean±sd | 15±13 | 20±15 | 20±15 | |
Median (range) | 13 (0–64) | 17 (0–65) | 16 (0–63) | |
FEV1 % pred | <0.01 | |||
Mean±sd | 87±16 | 79±18 | 55±23 | |
Median (range) | 87 (50–130) | 80 (45–122) | 48 (13–128) | |
Atopy % | 70 | 63 | 60 | 0.20 |
Rhinitis % | 70 | 65 | 69 | 0.58 |
Current smokers % | 14 | 15 | 12 | 0.85 |
#: p‐values were calculated with the Kruskal-Wallis or Chi-squared tests