Table 5 Associations (OR (95% CI)) between a 5 µg/m3 increase in daily average PM2.5 and hospitalizations, unadjusted and adjusting for average temperature and humidity (N = 520)
Event type and exposure timing | Model | Overall | Among highera annual PM2.5 | Among lowera annual PM2.5 |
|---|---|---|---|---|
Any Hospitalization (N = 1,849) | ||||
0–2 day PM2.5 | Unadjusted | 1.003 (0.936, 1.074) | 1.060 (0.969, 1.159) | 0.919 (0.820, 1.031) |
Adjusted | 1.007 (0.936, 1.083) | 1.068 (0.968, 1.178) | 0.923 (0.820, 1.038) | |
0–3 day PM2.5 | Unadjusted | 0.999 (0.927, 1.075) | 1.060 (0.961, 1.165) | 0.910 (0.803, 1.030) |
Adjusted | 1.003 (0.927, 1.086) | 1.066 (0.958, 1.185) | 0.914 (0.804, 1.039) | |
Cardiovascular Hospitalizations (N = 1,568) | ||||
0–2 day PM2.5 | Unadjusted | 0.972 (0.901, 1.049) | 1.034 (0.935, 1.144) | 0.887 (0.784, 1.005) |
Adjusted | 0.976 (0.900, 1.058) | 1.044 (0.935, 1.167) | 0.887 (0.781, 1.009) | |
Respiratory Hospitalizations (N = 1,379) | ||||
0–3 day PM2.5 | Unadjusted | 0.972 (0.890, 1.061) | 1.030 (0.919, 1.154) | 0.890 (0.770, 1.028) |
Adjusted | 0.971 (0.885, 1.066) | 1.034 (0.911, 1.175) | 0.889 (0.766, 1.031) | |