Baseline characteristics of study participants by First Nations status
| Characteristic | % of participants* | |
|---|---|---|
| First Nations n = 70 631 | Non–First Nations n = 2 732 214 | |
| Age, yr, mean ± SD | 34.5 ± 12.6 | 40.7 ± 16.3 |
| Sex, female | 49.9 | 49.5 |
| Comorbid condition | ||
| Hypertension | 3.9 | 7.5 |
| Cerebrovascular disease | 0.7 | 1.0 |
| Peripheral vascular disease | 0.2 | 0.6 |
| Congestive heart failure | 0.8 | 1.1 |
| Cancer | 1.0 | 1.8 |
| COPD | 17.6 | 9.2 |
| Dementia | 0.2 | 0.5 |
| Myocardial infarction | 0.5 | 0.9 |
| Peptic ulcer disease | 4.8 | 1.9 |
| Rheumatic disease | 1.2 | 0.6 |
| Location of residence | ||
| Rural | 47.7 | 19.3 |
| Urban | 52.3 | 80.7 |
| Unknown | 0.0 | 0.01 |
| Income quintile | ||
| 1 (lowest) | 42.5 | 21.6 |
| 2 | 14.7 | 19.6 |
| 3 | 10.5 | 18.3 |
| 4 | 7.9 | 18.0 |
| 5 (highest) | 9.4 | 17.8 |
| Unknown | 15.1 | 4.71 |
Note: COPD = chronic obstructive pulmonary disease, SD = standard deviation.
↵* Unless stated otherwise.