Table 2: Sensitivity analyses for the association of nonaccidental mortality with every 5°C change in cold and hot temperatures across 27 selected census divisions in Ontario, 1996-2010.
| Model | Pooled mean percent change in daily nonaccidental mortality (95% CI)* | |||
|---|---|---|---|---|
| Cold season (n = 188 415) |
Warm season (n = 164 403) |
|||
| Modelled different temperature metrics | ||||
| Daily mean air temperature | 3.0 | (1.8 to 4.2) | 2.5 | (1.3 to 3.8) |
| Daily maximum air temperature | 3.0 | (1.9 to 4.2) | 2.2 | (1.0 to 3.4) |
| Daily minimum air temperature | 2.4 | (1.3 to 3.5) | 1.8 | (0.6 to 2.9) |
| Daily mean humidex | - | - | 1.6 | (0.8 to 2.3) |
| Daily maximum humidex | - | - | 1.5 | (0.7 to 2.3) |
| Daily mean windchill | 1.8 | (0.7 to 3.0) | - | - |
| Daily maximum windchill | 2.3 | (0.8 to 3.8) | - | - |
| Modelled different lag structure for temperature | ||||
| Lag 0 | 0.8 | (-0.1 to 1.7) | 2.5 | (1.3 to 3.8) |
| Lag 1 | 1.3 | (0.4 to 2.2) | 0.1 | (-1.1 to 1.3) |
| Lag 2 | 1.2 | (0.1 to 2.2) | -1.0 | (-2.2 to 0.1) |
| Lag 3 | 1.5 | (0.6 to 2.5) | -0.5 | (-1.4 to 0.5) |
| Lag 4 | 2.1 | (1.3 to 3.0) | -0.2 | (-1.2 to 0.8) |
| Lag 5 | 1.6 | (0.8 to 2.4) | -0.5 | (-1.5 to 0.5) |
| Lag 6 | 0.9 | (0.0 to 1.9) | -0.6 | (-1.9 to 0.6) |
| Lag 0-1 | 1.4 | (0.3 to 2.5) | 1.7 | (0.3 to 3.1) |
| Lag 0-3 | 2.1 | (0.9 to 3.3) | 0.2 | (-1.2 to 1.7) |
| Lag 0-6 | 3.0 | (1.8 to 4.1) | -0.1 | (-1.5 to 1.3) |
| Adjusted for snow fall† | ||||
| No | 3.6 | (2.0 to 5.2) | - | - |
| Yes | 3.6 | (1.9 to 5.3) | - | - |
| Adjusted for fine particulate matter‡ | ||||
| No | 2.7 | (1.7 to 3.8) | 2.5 | (1.3 to 3.8) |
| Yes | 2.8 | (1.6 to 3.9) | 2.6 | (1.2 to 4.1) |
*Cold season: daily mean temperature at lag 0-6; warm season: daily mean temperature at lag 0.
†Restricted to census divisions with available data on snow fall.
‡Restricted to days with available data of fine particulate matter (lag 0-2).