Table 2.
Descriptive Statistics—Population Characteristics, Baseline Mortality Rates, Air Pollution Concentrations, and Air Pollution Attributable Mortality Rates by Census Tract
| Variable | Montreal | Ottawa | Toronto | Winnipeg | Calgary | Edmonton | Vancouver |
|---|---|---|---|---|---|---|---|
| Mean, all census tracts | |||||||
| Percent age 65+ | 15.9 | 16.9 | 16.1 | 15.9 | 12.2 | 13.6 | 16.5 |
| Percent Black population | 8.7 | 6.8 | 8.7 | 3.8 | 3.9 | 5.7 | 1.0 |
| Percent Indigenous population | 0.7 | 2.5 | 0.9 | 13.6 | 3.0 | 6.1 | 3.4 |
| Percent < LICO a | 19.0 | 12.1 | 17 | 13.9 | 9.0 | 10.6 | 16.5 |
| Percent < High school | 16.2 | 12.2 | 16.9 | 17.9 | 13.6 | 16.2 | 12.5 |
| Mortality/100,000 (age 25+) | 979.0 | 914.3 | 814.2 | 1,125.7 | 638.3 | 857.2 | 809.7 |
| PM2.5 (μg/m3) | 8.3 | 6.3 | 8.5 | 5.6 | 6.0 | 8.0 | 6.1 |
| NO2 (ppb) | 14.8 | 6.3 | 15.9 | 9.6 | 13.3 | 15.8 | 15.2 |
| PM2.5 attributable mortality/100,000 | 55.4 | 40.0 | 46.5 | 43.0 | 27.3 | 47.7 | 33.7 |
| NO2 attributable mortality/100,000 | 85.0 | 37.7 | 77.2 | 66.5 | 53.5 | 81.2 | 72.8 |
| Ratio of maximum to minimum over all census tracts | |||||||
| Mortality per 100k (age 25+) | 89.8 | 35.2 | 38.3 | 26.3 | 42.3 | 37.4 | 17.0 |
| PM2.5 (μg/m3) | 1.3 | 1.4 | 1.2 | 1.2 | 1.8 | 1.5 | 1.3 |
| NO2 (ppb) | 4.7 | 3.1 | 3.0 | 3.0 | 2.6 | 2.6 | 4.9 |
| PM2.5 attributable mortality per 100k | 93.6 | 45.8 | 35.3 | 27.7 | 59.4 | 47.5 | 18.9 |
| NO2 attributable mortality per 100k | 84.5 | 54.3 | 42.3 | 51.2 | 61.0 | 48.2 | 20.3 |
a
Low Income Cut‐Off.