| ERR (%) and 95% CI associated with a 10 μg/m3 increase in pollutant levels | ERR (%) and 95% CI associated with an increase in pollutant levels corresponding to the difference bet-ween the lowest of the 5th percentiles and the highest of the 95th percentiles of the cities’ distributions | |||
| PM2.5 | PM2.5−10 | PM2.5 (27 μg/m3 increase) | PM2.5−10 (18.8 μg/m3 increase) | |
| Respiratory diseases | ||||
| 0–14 years | 0.4 (−1.2 to 2.0) | 6.2* (0.4 to 12.3) | 1.1 (−3.1 to 5.5) | 12.0* (0.8 to 24.3) |
| 15–64 years | 0.8 (−0.7 to 2.3) | 2.6 (−0.5 to 5.8) | 2.2 (−1.8 to 6.4) | 5.0 (−0.9 to 11.1) |
| ⩾65 years | 0.5 (−2.0 to 3.0) | 1.9 (−1.9 to 5.9) | 1.3 (−5.3 to 8.2) | 3.7 (−3.6 to 11.4) |
| Respiratory infections | 2.5* (0.1 to 4.8) | 4.4* (0.9 to 8.0) | 7.0* (0.7 to 13.6) | 8.4* (1.7 to 15.5) |
| Cardiovascular diseases | ||||
| All ages | 0.9* (0.1 to 1.8) | 0.5 (−1.2 to 2.3) | 2.5* (0.2 to 4.9) | 1.0 (−2.3 to 4.3) |
| ⩾65 years | 1.9* (0.9 to 3.0) | 1.0 (−1.0 to 3.0) | 5.3* (2.6 to 8.2) | 1.9 (−2.0 to 5.9) |
| Cardiac diseases | ||||
| All ages | 0.9 (−0.1 to 2.0) | 0.1 (−1.9 to 2.1) | 2.5 (−0.3 to 5.4) | 0.1 (−3.6 to 4.0) |
| ⩾65 years | 2.4* (1.2 to 3.7) | 1.6 (−0.8 to 4.1) | 6.8* (3.3 to 10.3) | 3.1 (−1.5 to 7.9) |
| Ischaemic heart diseases | ||||
| All ages | 1.9 (−0.2 to 4.0) | 2.8 (−0.8 to 6.6) | 5.2 (−0.6 to 11.3) | 5.4 (−1.5 to 12.8) |
| ⩾65 years | 4.5* (2.3 to 6.8) | 6.4* (1.6 to 11.4) | 12.7* (6.3 to 19.5) | 12.4* (3.1 to 22.6) |
Estimated combined excess relative risks of cardiorespiratory hospitalisations (%) and their 95% confidence intervals associated with a 10 μg/m3 increase in pollutant levels and with an increase in pollutant levels corresponding to the difference between the lowest of the 5th percentiles and the highest of the 95th percentiles of the cities distribution. ERR, excess relative risk.
*p<0.05.