Table 2 explanatory variables used in all models.
Variable | Description |
|---|---|
Lagged PM10 | Estimated ambient PM10 for each single-day lag 0, 1, 2 or 3 in (μg/m3) |
Indigenous | An index of counts for indigenous status where indigenous = 1 and non-indigenous = 0 |
Time | Time in days, represented by a natural cubic spline with 40 df (4 df per dry season) |
AvDailyTemp | Average daily temperature (calculated by averaging the max and min temperatures), in Degrees Celsius (°C), with 6df |
AvDailyTempLag1-3 | Moving three-day averages of daily temperatures (lags 1, 2 and 3), with 6df |
RHumAv | Average daily relative humidity in percent (%) with 3df |
RHumAvLag1-3 | Moving three-day averages of daily relative humidity (lags 1, 2 and 3), with 3 df |
DOW | Day of the week. Factor with 7 levels |
FluEpidemic | Influenza epidemics. Dummy for days above the 90th centile |
ICD10change | The change between ICD editions. Dummy variable indicating the changeover |
Holidays | Dummy variable for public holidays |
Population | The estimated yearly population for indigenous or non-indigenous residents included as an offset |