Table 1 Baseline patients’ characteristics
Variables | Total population (n = 1,286) | Development population (n = 855) | Validation population (n = 431) | P value |
|---|---|---|---|---|
Age in years, median, (IQR) | 38 (27–50) | 37 (27–48) | 37 (26–50) | 0.502 |
Women (%) | 60.3 | 60.6 | 59.6 | 0.741 |
Smoking habit (%): | ||||
Smoker | 12.8 | 13.0 | 12.4 | 0.322 |
Non-smoker | 69.1 | 67.9 | 71.7 | |
Ex-smoker | 18.0 | 19.1 | 15.9 | |
Environment (%): | ||||
Urban | 67.4 | 68.8 | 64.8 | 0.154 |
Rural | 32.6 | 31.2 | 35.2 | |
Years since asthma diagnosis: Median, (IQR) | 10 (4.4 - 20) | 10 (4.5-20) | 10 (4–19) | 0.830 |
Rhinitis (% patients) | 91.7 | 93.2 | 90.1 | 0.780 |
Lung function | ||||
FEV 1 mean% (SD) | 88.3 (18.8) | 88.5 (19) | 88.0 (18.6) | 0.642 |
FVC mean% (SD) | 95.5 (19.02) | 95.4 (19.4) | 95.7 (18.3) | 0.813 |
FEV 1 /FVC mean% (SD) | 76.7 (13.07) | 77.2 (13.8) | 75.9 (11.5) | 0.08 |