Distribution of levels of asthma severity and control
| Patients from asthma clinics | Quebec cohort of patients with asthma(n = 139 283 person-years) | |||
|---|---|---|---|---|
| All patients(n = 71) | Patients⩽45 years(n = 34) | Patients>45 years(n = 37) | ||
| Data shown as number (%). | ||||
| Mild | 35 (49.3) | 20 (58.8) | 15 (40.5) | 88 250 (63.4) |
| Controlled | 28 (80.0) | 17 (85.0) | 11 (73.3) | 57 529 (65.2) |
| Uncontrolled | 7 (20.0) | 3 (15.0) | 4 (26.7) | 30 721 (34.8) |
| Moderate | 21 (29.6) | 9 (26.5) | 12 (32.4) | 31 552 (22.6) |
| Controlled | 9 (42.9) | 4 (44.4) | 5 (41.7) | 5 488 (17.4) |
| Uncontrolled | 12 (57.1) | 5 (55.6) | 7 (58.3) | 26 064 (82.6) |
| Severe | 15 (21.1) | 5 (14.7) | 10 (27.0) | 19 481 (14.0) |
| Controlled | 1 (6.7) | 0 (0.0) | 1 (10.0) | 377 (1.9) |
| Uncontrolled | 14 (93.3) | 5 (100.0) | 9 (90.0) | 19 104 (98.1) |
| Controlled | 38 (53.5) | 21 (61.8) | 17 (45.9) | 63394 (45.5) |
| Uncontrolled | 33 (46.5) | 13 (38.2) | 20 (54.1) | 75889 (54.5) |