Table 3.
Multivariate logistic regression results for the association between secondary attack rate before admission and meteorological factors and air pollution; People's Republic of China, 2003.
| Risk factor | OR | 95% CI | Time variable adjusted OR | 95% CI |
|---|---|---|---|---|
| Daily average temperature (DAT) | 1.03 | 0.82, 1.30 | 1.20 | 0.91, 1.58 |
| Daily average air pressure (DAAP) | 0.53 | 0.42, 0.66 | 0.50 | 0.40, 0.64 |
| Daily average relative humidity (DARH) | 0.73 | 0.53, 1.00 | 0.71 | 0.51, 0.97 |
| Daily average wind velocity (DAWV) | 0.81 | 0.68, 0.96 | 0.80 | 0.67, 0.95 |
| Daily hours of sunshine (DHS) | 0.83 | 0.62, 1.12 | 0.80 | 0.59, 1.09 |
| Air pollution index (API) | 0.88 | 0.76, 1.02 | 0.88 | 0.76, 1.01 |
OR, odds ratio; CI, confidence interval.