Table 3. Percentage changes with 95% CI in cause-specific respiratory ERV associated with a 10 μg/m3 increase in PM2.5 concentrations for different lag structures.*.
| Lag Days | URTI | LRTI | AECOPD | Asthma | ||||
|---|---|---|---|---|---|---|---|---|
| PC | 95% CI | PC | 95% CI | PC | 95% CI | PC | 95% CI | |
| lag0 | 0.19 | (0.04, 0.35) | 0.34 | (0.14, 0.53) | 1.46 | (0.13, 2.79) | -0.62 | (-1.46, 0.22) |
| lag1 | 0.14 | (0.00, 0.27) | 0.08 | (-0.09, 0.25) | 2.40 | (1.26, 3.53) | 0.19 | (-0.54, 0.93) |
| lag2 | -0.09 | (-0.22, 0.05) | 0.19 | (0.03, 0.36) | 1.22 | (0.11, 2.34) | 0.07 | (-0.63, 0.77) |
| lag3 | 0.14 | (0.00, 0.27) | 0.19 | (0.02, 0.35) | 0.92 | (-0.22, 2.07) | 0.01 | (-0.68, 0.70) |
| lag4 | 0.02 | (-0.12, 0.16) | 0.09 | (-0.08, 0.26) | -0.81 | (-2.04, 0.42) | -0.42 | (-1.13, 0.29) |
| lag5 | 0.02 | (-0.12, 0.16) | -0.10 | (-0.27, 0.08) | -1.48 | (-2.75, -0.22) | -0.33 | (-1.05, 0.39) |
| lag0-1 | 0.20 | (0.03, 0.37) | 0.27 | (0.06, 0.48) | 2.70 | (1.25, 4.14) | -0.21 | (-1.13, 0.70) |
| lag0-3 | 0.18 | (-0.03, 0.39) | 0.24 | (-0.02, 0.50) | 3.15 | (1.39, 4.91) | 0.09 | (-1.00, 1.19) |
| lag0-5 | 0.10 | (-0.17, 0.37) | 0.21 | (-0.11, 0.53) | 1.81 | (-0.43, 4.06) | -0.36 | (-1.70, 0.99) |
*statistically significant results at the 5% level are indicated in bold.
Abbreviations: URTI-upper respiratory tract infection, LRTI-lower respiratory tract infection, AECOPD-acute exacerbation of chronic obstructive pulmonary disease, PC- percentage change.