表 6.
不同滞后天数O324h浓度每升高10 μg/m3儿童哮喘门诊就诊人次的超额危险度
Excess risk of childhood asthma hospital outpatient visits associated with a 10 μg/m3increase in O324h concentrations with different lag days %
| Lag days | ER (95%CI) | |||
| Spring | Summer | Autumn | Winter | |
| * P < 0.05. Abbreviations as in Table 4. | ||||
| Lag0 | -1.055 (-2.897 to 0.821) | 6.600 (0.914 to 12.607)* | 1.752 (-0.647 to 4.209) | -2.261 (-6.110 to 1.745) |
| Lag1 | -0.498 (-2.373 to 1.413) | 3.552 (-0.338 to 7.593) | -2.468 (-5.130 to 0.269) | -4.455 (-8.325 to 0.421) |
| Lag2 | -1.088 (-3.358 to 1.236) | -2.162 (-5.842 to 1.662) | -0.634 (-3.473 to 2.289) | -0.220 (-3.861 to 3.559) |
| Lag3 | -0.751 (-2.996 to 1.546) | -0.539 (-4.299 to 3.369) | 2.593 (-1.779 to 7.160) | 1.874 (-1.838 to 5.726) |
| Lag4 | -0.196 (-2.382 to 2.038) | 1.187 (-2.568 to 5.087) | 3.030 (-2.183 to8.520) | 2.030 (-1.794 to 6.004) |
| Lag5 | -0.033 (-2.051 to 2.027) | -2.107 (-5.866 to 1.802) | 3.273 (-2.055 to 8.891) | -0.651 (-4.319 to 3.156) |
| Lag6 | 1.091 (-0.798 to 3.016) | 0.511 (-3.342 to 4.518) | 1.103 (-4.161 to 6.656) | -2.145 (-5.963 to 1.829) |
| Lag7 | 1.067 (-1.232 to 3.418) | 1.505 (-2.498 to 5.672) | -1.963 (-6.748 to 3.067) | -0.133 (-3.848 to 3.726) |
| Lag01 | -0.509 (-2.745 to 1.779) | 8.115 (-2.446 to 14.098) | -0.117 (-3.645 to 3.542) | -6.442 (-11.553 to 1.036) |
| Lag02 | -0.801 (-3.425 to 1.895) | 6.567 (-0.357 to 13.972) | -2.218 (-7.136 to 2.960) | -6.086 (-12.403 to 0.686) |
| Lag03 | -1.475 (-4.674 to 1.831) | 6.014 (-1.878 to 14.54) | -1.225 (-7.883 to 5.915) | -4.232 (-11.895 to 4.098) |
| Lag04 | -1.773 (-5.757 to 2.38) | 6.749 (-2.012 to 16.294) | -0.938 (-9.439 to 8.360) | -2.028 (-11.291 to 8.204) |
| Lag05 | -2.023 (-6.667 to 2.851) | 3.623 (-6.055 to 14.299) | 0.186 (-10.06 to 11.600) | -2.631 (-13.478 to 9.575) |
| Lag06 | -1.232 (-6.561 to 4.400) | 4.382 (-6.527 to 16.564) | 2.964 (-10.017 to 17.817) | -6.308 (-12.75 to 8.038) |
| Lag07 | 0.816 (-5.114 to 7.117) | 4.637 (-7.882 to 18.858) | -1.652 (-14.032 to 12.511) | -6.538 (-11.281 to 9.966) |