表 5.
不同滞后天数O38h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 O38h concentrations with different lag days %
| Lag days | ER (95%CI) | |||
| Spring | Summer | Autumn | Winter | |
| * P < 0.05. Abbreviations as in Table 4. | ||||
| Lag0 | -0.383 (-1.579 to 0.828) | 3.320 (0.197 to 3.829)* | 0.552 (-1.149 to 2.283) | -2.203 (-3.787 to -0.593) |
| Lag1 | 0.360 (-0.855 to 1.590) | -1.689 (-3.761 to 0.428) | 0.046 (-1.53 to 1.648) | -0.232 (-1.869 to 1.432) |
| Lag2 | -1.449 (-2.869 to -0.008) | -1.106 (-3.083 to 0.912) | 0.272 (-1.324 to 1.895) | 1.171 (-0.359 to 2.724) |
| Lag3 | 0.590 (-0.805 to 2.005) | 1.074 (-1.636 to 3.860) | -0.511 (-2.148 to 1.154) | 0.166 (-1.401 to 1.757) |
| Lag4 | 1.367 (-0.001 to 2.753) | 2.747 (-1.046 to 6.685) | 0.299 (-1.281 to 1.903) | 0.762 (-0.767 to 2.315) |
| Lag5 | -0.400 (-1.672 to 0.888) | -3.538 (-7.437 to 0.525) | 0.261 (-1.279 to 1.825) | -0.841 (-2.353 to 0.695) |
| Lag6 | 0.313 (-0.91 to 1.552) | -0.361 (-4.213 to 3.646) | 0.273 (-1.242 to 1.811) | -0.362 (-1.941 to 1.243) |
| Lag7 | 0.060 (-1.497 to 1.641) | -0.597 (-4.584 to 3.557) | 1.038 (-0.566 to 2.667) | -0.895 (-2.404 to 0.637) |
| Lag01 | 0.251 (-1.248 to 1.772) | 0.542 (-2.186 to 3.346) | 0.550 (-1.652 to 2.801) | -2.429 (-4.610 to 0.197) |
| Lag02 | 0.575 (-1.169 to 2.349) | -0.559 (-4.371 to 3.406) | 0.813 (-1.801 to 3.496) | -1.481 (-4.234 to 1.35) |
| Lag03 | 0.052 (-2.056 to 2.206) | 1.880 (-3.507 to 7.568) | 0.822 (-2.172 to 3.907) | -2.040 (-5.409 to 1.448) |
| Lag04 | 0.140 (-2.718 to 3.081) | 2.916 (-2.582 to 8.724) | 1.124 (-2.367 to 4.74) | -2.219 (-6.268 to 2.004) |
| Lag05 | 0.864 (-2.969 to 4.848) | 0.377 (-5.828 to 6.991) | 1.251 (-2.773 to 5.441) | -4.524 (-9.092 to 0.274) |
| Lag06 | -2.218 (-6.916 to 2.716) | -1.961 (-8.973 to 5.591) | 1.300 (-3.317 to 6.137) | -5.045 (-10.445 to 0.680) |
| Lag07 | -2.271 (-7.518 to 3.273) | -3.019 (-11.132 to 5.835) | 2.307 (-3.077 to 7.990) | -6.712 (-8.969 to 0.050) |