Table 1 Baseline characteristics.
| Â | Â | Age at admission | |||
|---|---|---|---|---|---|
| Â | Total population | Under 65 | 65-75 | 75-80 | 80 and over |
N | 7165 | 3806 | 1938 | 826 | 595 |
Age (years) | 64 (52-73) | 53 (43-60) | 70 (67-72) | 77 (76-79) | 83 (81-85) |
Gender (male) | 4514 (63%) | 2424 (63.7%) | 1254 (64.7%) | 505 (61.1%) | 331 (55.6%) |
ICU length of stay (days) | 1 (1-3) | 1 (1-4) | 1 (1-2) | 1 (1-2) | 1 (1-3) |
Elective admission | 3908 (54.5%) | 1764 (46.3%) | 1265 (65.3%) | 547 (66.2%) | 332 (55.8%) |
APACHE IV score | 46 (33-66) | 40 (27-62) | 49 (38-65) | 52 (41-69) | 58 (46-77) |
Total maximum SOFA score* | 5 (2-9) | 5 (2-9) | 5 (2-8) | 5 (3-8) | 6 (3-10) |