Descriptive statistics for CRB-65 risk categories and observed risk for hospital and community-based subjects.
| Hospital based | Community based | Total | ||||||
|---|---|---|---|---|---|---|---|---|
| Risk category | n | % | Observed events, % | n | % | Observed events, % | n | % |
| Low | 65 802 | 16.6 | 2.4 | 1025 | 54.4 | 0.0 | 66 827 | 16.8 |
| Intermediate | 283 137 | 71.5 | 13.3 | 765 | 43.6 | 1.6 | 283 902 | 71.4 |
| High | 47 119 | 11.9 | 34.3 | 27 | 1.9 | 18.5 | 47 146 | 11.8 |