Table 1.
Characteristics of Patients.
| Variables | Overall (n = 3916) |
|---|---|
| Age, mean ± SD, y | 70.5 ± 14.1 |
| Male, n (%) | 2399 (61.3%) |
| Weight | 55.0 (46.8–64.2) |
| Height | 160.0 (152.0–167.0) |
| Comorbidities, n (%) | |
| Chronic heart failure | 58 (1.5%) |
| Chronic respiratory failure | 105 (2.7%) |
| Chronic liver failure | 36 (0.9%) |
| Immunocompromised | 547 (14.0%) |
| Sepsis classifications, n (%) | |
| Sepsis | 968 (24.7%) |
| Sepsis with urinary tract infection | 166 (4.2%) |
| Septic shock | 2307 (58.9%) |
| Septic shock with urinary tract infection | 475 (12.1%) |
| Mechanical ventilation, n (%) | 1222 (31.2%) |
| APACHE II score | 23 (18–30) |
| APACHE III score | 89 (71–114) |
| SAPS II score | 51 (39–66) |
| SOFA score | 8 (6–12) |
| ICU admission route, n (%) | |
| Transfer from the ward | 1459 (37.3%) |
| Through the emergency room | 1447 (37.0%) |
| Following elective surgery | 747 (19.1%) |
| Following urgent surgery | 69 (1.8%) |
| Length of ICU stay | 7 (3–19) |
| Mortality, n (%) | 1203 (30.7%) |
| Body mass index (kg/m2) | 21.6 (19.0–24.5) |
| Underweight (<18.5 kg/m2), n (%) | 838 (21.4%) |
| Normal (≥18.5 to <25 kg/m2), n (%) | 2229 (56.9%) |
| Overweight (≥25 to <30 kg/m2), n (%) | 652 (16.6%) |
| Obese (≥30 kg/m2), n (%) | 197 (5.0%) |
| Lean body mass by Kulkarni et al. [22], kg | 38.3 (30.1–45.1) |
| Lean body mass by Weijs et al. [23], kg | 42.5 (35.3–48.8) |
| Lean body mass by Janmahasatian et al. [24], kg | 42.6 (33.8–49.5) |
| Lean body mass by Hume et al. [25], kg | 42.9 (38.2–47.4) |
SD: standard deviation; APACHE: Acute Physiology and Chronic Health Evaluation; SAPS: Simplified Acute Physiology Score; SOFA: Sequential Organ Failure Assessment; ICU: intensive care unit. Data are presented as median (IQR) unless otherwise indicated.