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 |
|
|
|
|
|
FEV1mean% (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 |
| FEV1/FVC mean% (SD) | 76.7 (13.07) | 77.2 (13.8) | 75.9 (11.5) | 0.08 |