Boys | Girls | |||||
PM2.5 | NO2 | O3 | PM2.5 | NO2 | O3 | |
RR (95% CI) | RR (95% CI) | RR (95% CI) | RR (95% CI) | RR (95% CI) | RR (95% CI) | |
Lag day 0 | 0.85 (0.80 to 0.91)* | 0.87 (0.75 to 1.02) | 0.99 (0.94 to 1.04) | 0.95 (0.80 to 1.14) | 0.66 (0.49 to 0.90)* | 1.01 (0.90 to 1.14) |
Lag day 1 | 1.19 (1.11 to 1.27)* | 1.03 (0.89 to 1.19) | 1.04 (0.98 to 1.10) | 1.05 (0.89 to 1.25) | 1.07 (0.80 to 1.43) | 0.92 (0.82 to 1.03) |
Lag day 2 | 1.04 (0.99 to 1.08) | 0.93 (0.86 to 1.02) | 0.99 (0.95 to 1.02) | 1.05 (0.94 to 1.18) | 1.09 (0.91 to 1.30) | 0.97 (0.90 to 1.05) |
Lag day 3 | 0.97 (0.93 to 1.01) | 0.97 (0.88 to 1.05) | 0.99 (0.96 to 1.03) | 1.01 (0.91 to 1.14) | 1.03 (0.85 to 1.23) | 1.01 (0.94 to 1.09) |
Lag day 4 | 0.99 (0.95 to 1.03) | 1.07 (1.00 to 1.15)* | 1.04 (1.00 to 1.07)* | 0.98 (0.89 to 1.08) | 0.98 (0.85 to 1.13) | 1.02 (0.96 to 1.09) |
Lag day 5 | 1.00 (0.96 to 1.04) | 1.10 (1.02 to 1.20)* | 1.04 (1.00 to 1.07)* | 0.98 (0.88 to 1.09) | 0.95 (0.80 to 1.12) | 1.01 (0.94 to 1.09) |
Lag day 6 | 0.97 (0.94 to 1.00)* | 1.02 (0.96 to 1.08) | 0.98 (0.96 to 1.01) | 1.00 (0.92 to 1.09) | 0.93 (0.82 to 1.05) | 1.00 (0.95 to 1.06) |
*P<0.05.
†The results are presented for a 10.0 µg/m3 increase for PM2.5 and 10.0 ppb for NO2 and O3 from models adjusted for region, day, temperature, relative humidity and population.
NO2, nitrogen dioxide; O3, ozone; PM2.5, particulate matter; RR, relative risk.