Table 1 Patient characteristics at baseline in relation to asthma severity - 2015
All patients n = 20,410 | Mild intermittent n = 14,191 | Mild Persistent n = 3680 | Moderate Persistent n = 1408 | Severe persistent n = 1131 | p-value a | |
|---|---|---|---|---|---|---|
Characteristic | ||||||
Age in years, mean (SD) | 23.9 (24.6) | 23.4 (23.9) | 23.7 (25.0) | 27.4 (27.8) | 26.3 (27.2) | < 0.001 |
Age, n (%) | ||||||
0-4y | 7377 (36.1) | 4913 (34.6) | 1426 (38.7) | 543 (38.5) | 495 (43.7) | < 0.001 |
5-9y | 3060 (14.9) | 2280 (16.0) | 482 (13.1) | 178 (12.6) | 120 (10.6) | |
10-14y | 1619 (7.9) | 1174 (8.2) | 300 (8.1) | 93 (6.6) | 52 (4.6) | |
15-19y | 804 (3.9) | 614 (4.3) | 135 (3.6) | 32 (2.2) | 23 (2.0) | |
20-44y | 2964 (14.5) | 2196 (15.4) | 523 (14.2) | 141 (10.0) | 104 (9.2) | |
45-59y | 1989 (9.7) | 1344 (9.4) | 340 (9.2) | 153 (10.8) | 152 (13.4) | |
>60y | 2597 (12.7) | 1670 (11.7) | 474 (12.8) | 268 (19.0) | 185 (16.3) | |
Gender | ||||||
Female, n (%) b | 10,847 (53.6) | 7599 (54.1) | 1937 (52.9) | 761 (54.2) | 550 (48.7) | 0.005 |
Place of residency | ||||||
Urban | 16,357 (80.1) | 11,147 (78.5) | 3101 (84.2) | 1164 (82.6) | 945 (83.5) | < 0.001 |
Rural | 4053 (19.8) | 3, 044 (21.4) | 579 (15.7) | 244 (17.3) | 186 (16.4) | |
SISBEN level c | ||||||
1 | 17,641 (86.4) | 12,277 (86.5) | 3195 (86.8) | 1192 (84.6) | 977 (86.3) | 0.028 |
2 | 1943 (9.5) | 1352 (9.5) | 317 (8.6) | 167 (11.8) | 107 (9.4) | |
3 | 99 (0.5) | 72 (0,5) | 14 (0.3) | 7 (0.5) | 6 (0.5) | |
Other | 727 (3.5) | 490 (3.4) | 154 (4.1) | 42 (2.9) | 41 (3.6) | |
Comorbidities | ||||||
Rhinitis | 1209 (5.9) | 709 (5.0) | 248 (6.7) | 132 (9.4) | 120 (10.6) | < 0.001 |
Acute Bronchitis | 350 (1.7) | 187 (1.3) | 74 (2.0) | 52 (3.7) | 37 (3.2) | < 0.001 |
COPD | 2223 (10.9) | 1081 (7.6) | 475 (12.9) | 340 (24.2) | 327 (28.9) | < 0.001 |
Atopic Eczema | 667 (3.2) | 424 (2.9) | 141 (3.8) | 70 (4.9) | 50 (4.4) | < 0.001 |
Pulmonary Emphysema | 71 (0.3) | 29 (0.2) | 17 (0.4) | 14 (1) | 11 (1.9) | < 0.001 |