Table 1.
Demographic data
| Age (years), mean (SD) | 64.3 (±16.0) |
| Race, n (%) | |
| White | 48 274 (80.7) |
| Black | 3781 (6.3) |
| Hispanic | 2475 (4.1) |
| Asian | 1392 (2.3) |
| Unknown/other | 3894 (6.5) |
| Gender, n (%) | |
| Male | 34 132 (57.1) |
| Female | 25 684 (42.9) |
| Admission ICU, n (%) | |
| Burn ICU | 3753 (6.3) |
| CCU | 7756 (12.9) |
| CTICU | 13 480 (22.5) |
| MICU | 11 419 (19.0) |
| NSICU | 12 864 (21.5) |
| SICU | 10 704 (17.9) |
| Mortality, n (%) | |
| 30 days | 6574 (11.0) |
| 90 days | 9651 (16.1) |
| 180 days | 11 960 (20.0) |
| 1 year | 14 551 (24.3) |
| Comorbidity score, mean (SD) | |
| Charlson | 7.22 (±3.81) |
| Elixhauser | 16.28 (±11.55) |
CCU, coronary care unit; CTICU, cardiothoracic ICU; ICU, intensive care unit; MICU, medical ICU; NSICU, neuroscience ICU; SICU, surgical ICU.