TABLE 1.
Demographic and Clinical Characteristics for Study Cohort, Survivors, and Nonsurvivors
| Variables | All Patients | Survivors | Nonsurvivors |
|---|---|---|---|
| Number of patients (%) | 242 | 151 (62.4) | 91 (37.6) |
| Age, yr, median (IQR) | 59 (51–65) | 56 (47–63) | 61 (57–67) |
| Males, n (% total patients) | 174 (71.9) | 105 (60.3) | 69 (39.7) |
| Females, n (% total patients) | 68 (28.1) | 46 (67.6) | 22 (32.4) |
| Body mass index, kg/m2, median (IQR) | 27.6 (24.45–55.5) | 27.6 (24.7–32.7) | 27.34 (23.9–30.2) |
| ICU length of stay, d, median (IQR) | 14.0 (5.1–30.0) | 15.1 (4.9–34.7) | 12.0 (5.8–20.0) |
| Advanced respiratory support daysa, d, median (IQR) | 12.5 (4.0–25.0) | 12.0 (3.0–29.0) | 13.0 (6.0–19.0) |
| Advanced renal support daysb, d, median (IQR) | 0 (0.0–4.0) | 0 (0.0–6.0) | 0 (0.0–2.0) |
| APACHE II, median (IQR) | 16.0 (11.0–20.0) | 14.0 (10.0–19.0) | 17.5 (13.0–21.8) |
| Predicted mortality calculated from median APACHE II score, % | 23.5 | 18.6 | 29.1 |
| SAPS II, median (IQR) | 29 (21–38) | 27 (20–34) | 33 (25–41) |
| Predicted mortality calculated from median SAPS II score, % | 9.7 | 7.9 | 14.0 |
| Intensive Care National Audit and Research Centre, median (IQR) | 22.5 (17.0–28.7) | 20.9 (17.0–27.0) | 26.0 (18.5–65.6) |
APACHE = Acute Physiology and Chronic Health Evaluation, IQR = interquartile range, SAPS = Simplified Acute Physiology Score.
aAdvanced respiratory support: mechanical ventilatory support via endotracheal tube or extracorporeal respiratory support.
bAdvanced renal support: acute renal replacement therapy or provision of renal replacement therapy to a chronic renal failure patient who is requiring other acute organ support.