Table 2.
Relative risk (95%CI) in daily overall and cause-specific ALRI hospital admissions per 10 µg/m3 increment in PM2.5, PM10, SO2 and NO2, stratified by gender, age and season
| Disease | Air pollution | Overall | Gender | Age | Season | |||
|---|---|---|---|---|---|---|---|---|
| Male | Female | < 5y | 5-14y | Warm | Cold | |||
| ALRI | PM2.5a | 1.089 (1.075,1.103) | 1.088 (1.074,1.103) | 1.090 (1.073,1.106) | 1.095 (1.081,1.109) | 1.067 (1.046,1.089) | 1.041 (1.017,1.066) | 1.082 (1.065,1.099) |
| PM10a | 1.018 (1.014,1.021) | 1.017 (1.014,1.021) | 1.018 (1.014,1.022) | 1.019 (1.015,1.022) | 1.013 (1.008,1.019) | 1.009 (1.004,1.015) | 1.019 (1.015,1.024) | |
| SO2a | 1.186 (1.154,1.219) | 1.188 (1.153,1.224) | 1.184 (1.145,1.224) | 1.176 (1.142,1.210) | 1.225 (1.174,1.277) | 1.214 (1.128,1.305) | 1.230 (1.189,1.273) | |
| NO2a | 1.149 (1.130,1.168) | 1.144 (1.124,1.165) | 1.156 (1.133,1.179) | 1.139 (1.119,1.159) | 1.186 (1.156,1.217) | 1.065 (1.025,1.106) | 1.169 (1.145,1.194) | |
| Pneumonia | PM2.5a | 1.094 (1.079,1.109) | 1.095 (1.097,1.111) | 1.092 (1.074,1.110) | 1.100 (1.085,1.116) | 1.071 (1.048,1.094) | 1.052 (1.025,1.079) | 1.083 (1.065,1.101) |
| PM10a | 1.018 (1.014,1.021) | 1.018 (1.014,1.022) | 1.017 (1.013,1.022) | 1.019 (1.016,1.023) | 1.013 (1.007,1.019) | 1.010 (1.004,1.016) | 1.019 (1.014,1.024) | |
| SO2a | 1.188 (1.154,1.224) | 1.192 (1.154,1.231) | 1.184 (1.142,1.227) | 1.175 (1.139,1.212) | 1.241 (1.186,1.299) | 1.246 (1.148,1.353) | 1.236 (1.192,1.282) | |
| NO2a | 1.155 (1.135,1.176) | 1.153 (1.130,1.175) | 1.159 (1.134,1.184) | 1.146 (1.125,1.167) | 1.192 (1.159,1.226) | 1.072 (1.028,1.118) | 1.171 (1.144,1.197) | |
| Bronchiolitis | PM2.5a | 1.067 (1.048,1.086) | 1.061 (1.039,1.084) | 1.075 (1.049,1.103) | 1.072 (1.051,1.093) | 1.052 (1.016,1.090) | 1.005 (0.966,1.045) | 1.076 (1.052,1.102) |
| PM10a | 1.015 (1.010,1.020) | 1.013 (1.007,1.019) | 1.019 (1.012,1.026) | 1.016 (1.010,1.021) | 1.013 (1.002,1.023) | 1.006 (0.997,1.016) | 1.019 (1.012,1.026) | |
| SO2b | 1.185 (1.133,1.239) | 1.184 (1.122,1.249) | 1.186 (1.113,1.264) | 1.193 (1.135,1.253) | 1.166 (1.072,1.268) | 1.088 (0.965,1.227) | 1.243 (1.179,1.311) | |
| NO2b | 1.115 (1.085,1.146) | 1.116 (1.080,1.152) | 1.116 (1.073,1.159) | 1.109 (1.076,1.143) | 1.135 (1.078,1.195) | 1.010 (0.946,1.078) | 1.172 (1.134,1.212) | |
In bold: statistically significant differences between groups
aThe maximum effect of air pollutants on each disease was lag0-7 for the maximum lag day
bThe maximum effect of air pollutants on each disease was lag0-6 for the maximum lag day