| Exacerbations | Estimated exacerbations | Exacerbations attributable to air pollution among those with coronary heart disease due to: | Exacerbations attributable to other causes among those with coronary heart disease due to near-road traffic-related pollution | Total attributable exacerbations due to air pollution | ||
| Near-road traffic-related pollution | Other | Total | ||||
| Non-fatal myocardial events | 3260 | 40 (0–120) | 110 (0–275) | 155 (0–365) | 870 (290–1460) | 1025 (420–1655) |
| Proportion of estimated exacerbations % | 1 (0–4) | 3 (0–8) | 5 (0–11) | 27 (9–45) | 31 (13–51) | |
| Hospital admission for myocardial infarction | 15980 | 40 (0–80) | 100 (0–185) | 140 (0–245) | 4430 (1510–7425) | 4575 (1640–7575) |
| Proportion of estimated exacerbations % | 0.3 (0–0.5) | 1 (0–1) | 1 (0–2) | 28 (9–46) | 29 (10–47) | |
| Hospital admission for stroke | 15060 | 15 (0–630) | 30 (0–1535) | 50 (0–2105) | 4200 (1410–7125) | 4250 (930–7425) |
| Proportion of estimated exacerbations % | 0.13 (0–4) | 0.2 (0–10) | 0.3 (0–13) | 26 (9–45) | 27 (6–46) | |
Data are presented as n, n (95% CI) or % (95% CI) of the number of estimated exacerbations. #: truncated to zero, when negative values obtained. Estimates rounded to nearest multiplier.