| Characteristic | No. (%) of patients† | |||
|---|---|---|---|---|
| COPD n = 10 043† | No COPD n = 240 303† | |||
| Age, mean ± SD | 69.9 | (12.9) | 49.2 | (18.5) |
| Sex | ||||
| Male | 4 649 | (46.3) | 99 533 | (41.4) |
| Female | 5 394 | (53.7) | 140 770 | (58.6) |
| Residence | n = 9 794 | n = 232 685 | ||
| Urban | 6 990 | (71.4) | 181 086 | (77.8) |
| Rural | 2 804 | (28.6) | 51 599 | (22.2) |
| No. of comorbid conditions‡ | ||||
| 0 | 2 338 | (23.3) | 137 110 | (57.1) |
| 1 | 3 549 | (35.3) | 68 297 | (28.4) |
| 2 | 2 720 | (27.1) | 26 299 | (10.9) |
| 3 | 1 117 | (11.1) | 7 147 | (3.0) |
| ≥ 4 | 319 | (3.2) | 1 450 | (0.6) |
Note: COPD = chronic obstructive pulmonary disease, SD = standard deviation. *Age ≥ 18 yr. †Unless stated otherwise. ‡Limited to other conditions for which the Canadian Primary Care Sentinel Surveillance Network has validated algorithms: hypertension, osteoarthritis, diabetes mellitus, depression, epilepsy, Parkinson disease and dementia.