Table 2.
Annual Reduction in Admissions Attributable to a 10-μg/m3 Reduction in the Daily PM2.5 Level for the 204 Counties in 2002
| Cause-Specific Hospital Admissions | Annual No. of Admissions | Annual Reduction in Admissions (95% PI)* |
|---|---|---|
| Cerebrovascular disease | 226 641 | 1836 (680 to 2992) |
| Peripheral vascular disease | 70 061 | 602 (−42 to 1254) |
| Ischemic heart disease | 346 082 | 1523 (69 to 2976) |
| Heart rhythm | 169 627 | 967 (−17 to 1951) |
| Heart failure | 246 598 | 3156 (1923 to 4389) |
| COPD | 108 812 | 990 (196 to 1785) |
| Respiratory tract infection | 226 620 | 2085 (929 to 3241) |
Abbreviations: COPD, chronic obstructive pulmonary disease; PI, posterior interval; PM2.5, particulate matter of less than or equal to 2.5 μm in aerodynamic diameter.
*
Per 10-μg/m3 reduction in PM2.5.