Hospital characteristics and composite outcomes
| Reporting institutions | 118 |
| Reported cases | |
| Total | 8533 |
| Mean (SD)* | 72.3 (72.4) |
| Range | (5–621) |
| AAMC teaching hospital, % (N) | 89.0 (105/118) |
| Certified stroke center, % (N) | 72.9 (86/118) |
| Region, n (%) | |
| Mid-Atlantic | 28 (23.7) |
| Mid-continent | 19 (16.1) |
| Midwestern | 24 (20.3) |
| New England | 12 (10.2) |
| Southeastern | 21 (17.8) |
| Western | 14 (11.9) |
| Transfers (%) | |
| Total, % (N) | 42.5 (3625/8533) |
| Mean (SD)* | 36.1 (25.4) |
| Range | (0.0–87.5) |
| IV tPA (%) | |
| Total, % (N) | 31.8 (2710/8533) |
| Mean (SD)* | 35.9 (16.6) |
| Range | (5.7–80.4) |
| Intracerebral hemorrhage (%) | |
| Total, % (N) | 19.2 (1638/8533) |
| Mean (SD)* | 18.7 (8.3) |
| Range | (0.0–40.0) |
| Mortality rate (%) | |
| Total, % (N) | 13.5 (1150/8533) |
| Mean (SD)* | 15.6 (8.7) |
| Range | (0.0–50.0) |
| Mortality index | |
| Mean (SD)* | 1.2 (0.6) |
| Range | (0.0–3.4) |
| Discharge to home | |
| Total, % (N) | 18.6 (1590/8533) |
| Mean (SD)* | 17.2 (8.0) |
| Range | (0.0–41.7) |
*Per institution.
IV tPA, IV tissue plasminogen activator; AAMC, Association of American Medical Colleges.