Table 1.
Population characteristics
| Variable | Baseline | Heterogeneous | Homogeneous |
|---|---|---|---|
| Patient demographics | |||
| Patient days | 3,818 | 1,281 | 1,176 |
| Admitted patients | 457 | 176 | 135 |
| Age (years) | 53 ± 19 | 57 ± 18 | 56 ± 15 |
| APACHE II score | 21 ± 8 | 23 ± 8 | 21 ± 7 |
| MICU stay (days) | 8 ± 11 | 7 ± 9 | 9 ± 10 |
| Male sex [no. (%) of patients] | 244 (53.4) | 104 (59.1) | 82 (60.7) |
| Mortality [no. (%)] | 83 (18.2) | 23 (13.6) | 29 (21.5) |
| Admission indication | |||
| Cardiovascular | 30 (6.6) | 9 (5.1) | 9 (6.7) |
| Pulmonary | 94 (20.6) | 36 (20.5) | 34 (25.2) |
| Gastro-intestinal | 10 (2.2) | 4 (2.3) | 0 |
| Neurological | 72 (15.8) | 28 (15.9) | 21 (15.6) |
| Sepsis | 26 (5.7) | 6 (3.4) | 7 (5.2) |
| Trauma | 45 (9.8) | 14 (8.0) | 5 (3.7) |
| Surgery | 139 (30.4) | 72 (40.9) | 49 (36.3) |
| Other | 41 (9.0) | 7 (4.0) | 10 (7.4) |