Table 2.
Summary of regression model results.
| Variable | Bivariatea |
Multivariatea |
||
|---|---|---|---|---|
| IRR | 95% CI | IRR | 95% CI | |
| PM2.5 (per μg/m3) | 1.25 | 1.13–1.38 | 1.07 | 0.97–1.18 |
| Minimum temperatureb | 1.64 | 1.23–2.19 | 1.42 | 1.05–1.93 |
| Maximum temperatureb | 1.42 | 1.08–1.86 | ||
| Population densityb | 1.40 | 1.19–1.63 | ||
| Percent age 65+b | 0.57 | 0.48–0.69 | 0.72 | 0.59–0.88 |
| Percent < LICOb | 1.57 | 1.33–1.84 | 1.12 | 0.91–1.38 |
| Percent Blackb | 1.49 | 1.27–1.75 | ||
| Percent asthmab | 0.81 | 0.68–0.97 | ||
| Percent COPDb | 0.61 | 0.52–0.72 | ||
| Percent hypertensionb | 0.64 | 0.52–0.79 | ||
| Percent diabetesb | 1.03 | 0.84–1.27 | ||
| Percent physically activeb | 0.92 | 0.70–1.19 | ||
| Percent overweightb | 0.78 | 0.65–0.93 | 0.86 | 0.71–1.03 |
| Percent obeseb | 0.71 | 0.57–0.87 | 0.90 | 0.68–1.20 |
| Percent smokersb | 0.97 | 0.72–1.30 | ||
| Days since first caseb | 1.52 | 1.24–1.86 | ||
| Days since peak incidenceb | 0.60 | 0.50–0.72 | 0.71 | 0.59–0.84 |
| NDVIc | 0.58 | 0.44–0.77 | ||
a
Includes log(population) as offset and province as factor.
b
scaled.
c
only health regions with population density greater ≥ median.