Table 2.
The estimates of RR (95%CI) for asthma hospitalizations using different exposure-response functions
| PM2.5 | PM10 | SO2 | NO2 | CO | O3 | |
|---|---|---|---|---|---|---|
| heating season | ||||||
| per 10μg/m3 increasea | 1.006 | 1.003 | 1.011 | 1.018 | 1.002 | 0.991 |
| (1.005,1.008) | (1.003,1.004) | (1.008,1.014) | (1.014,1.023) | (1.002,1.003) | (0.987,0.995) | |
| NAAQS grade IIb | 1.043 | 1.022 | 1.147 | 1.118 | 1.061 | 0.864 |
| (1.021,1.066) | (0.981,1.064) | (1.075,1.224) | (1.061,1.179) | (1.014,1.111) | (0.810,0.922) | |
| non-heating season | ||||||
| per 10μg/m3 increase | 1.007 | 1.005 | 1.02 | 1.016 | 1.006 | 1.006 |
| (1.004,1.010) | (1.003,1.007) | (1.011,1.029) | (1.007,1.026) | (1.002,1.009) | (1.001,1.010) | |
| NAAQS grade II | 1.092 | 1.133 | 1.28 | 1.13 | 1.26 | 1.101 |
| (1.024,1.164) | (1.050,1.222) | (1.094,1.498) | (1.043,1.223) | (1.103,1.440) | (1.007,1.203) | |
aper 0.1 mg/m3 for CO and estimated from the linear exposure-response function
bestimated from the non-linear exposure-response function versus null exposure
CI confidence interval