| Incubation Period (1-3 Days Prior to Case Occurrence) | Prior to Incubation Period (4-6 Days Prior to Case Occurrence) | ||||
---|---|---|---|---|---|---|
Exposure | OR | (95% CI) | P | OR | (95% CI) | P |
Meteorological | Â | Â | Â | Â | Â | Â |
   Cooling Degree-Days (°C) | 0.878 | 0.624-1.236 | 0.456 | 0.926 | 0.676-1.270 | 0.635 |
   Maximum Temperature (°C) | 1.036 | 0.855-1.256 | 0.717 | 0.997 | 0.822-1.209 | 0.974 |
   Minimum Temperature (°C) | 0.994 | 0.820-1.204 | 0.948 | 1.039 | 0.858-1.258 | 0.694 |
   Atmospheric Pressure (kPa) | 1.026 | 0.848-1.241 | 0.794 | 1.013 | 0.834-1.230 | 0.895 |
   Precipitation (mm) | 0.954 | 0.783-1.162 | 0.6400 | 0.897 | 0.731-1.101 | 0.300 |
   Relative Humidity (%) | 1.038 | 0.844-1.275 | 0.725 | 0.989 | 0.804-1.217 | 0.916 |
   UV Index | 1.148 | 0.944-1.396 | 0.168 | 1.061 | 0.874-1.289 | 0.548 |
   Average Wind Speed (km/h) | 0.900 | 0.737-1.098 | 0.298 | 1.045 | 0.851-1.283 | 0.6739 |
Air Quality | Â | Â | Â | Â | Â | Â |
   Sulphur Oxides (ppm) | 0.747 | 0.603-0.925 | 0.007 | 1.425 | 0.952-1.425 | 0.138 |
   Oxides of Nitrogen (ppm) | 0.918 | 0.735-1.147 | 0.452 | 1.144 | 0.930-1.406 | 0.203 |
   Carbon Monoxide (ppm) | 0.925 | 0.751-1.139 | 0.461 | 0.996 | 0.809-1.227 | 0.971 |
   PM10 (μg/m3) | 0.215 | 0.732-3.999 | 0.215 | 1.199 | 0.523-2.750 | 0.668 |
   Ozone (ppm) | 1.018 | 0.830-1.249 | 0.861 | 0.904 | 0.730-1.118 | 0.351 |