Hospitalisation
| All patients (n=148) | Delirium (n=108) | No delirium (n=40) | P value | |
| Length of hospitalisation, days (IQR) | 25 (13–48) | 31 (18–52) | 11 (7–25) | <0.001 |
| Length of ICU stay, days (IQR) | 15 (7–31) | 19 (12–38) | 4 (2–8) | <0.001 |
| Ventilator time, days, (IQR) | 12 (3–28) | 18 (10–29) | 0 (0–7) | <0.001 |
| Required haemodialysis, n (%) | 45 (30) | 40 (37) | 5 (13) | 0.004 |
| Sedative-hypnotics, n (%) | ||||
| Propofol | 113 (76) | 98 (91) | 15 (38) | <0.001 |
| Midazolam | 87 (59) | 75 (69) | 12 (30) | <0.001 |
| Dexmedetomidine | 97 (66) | 89 (82) | 8 (20) | <0.001 |
| Lorazepam | 58 (39) | 52 (49) | 6 (15) | <0.001 |
| Laboratories | ||||
| WBC (n=148) 4.0–10.0 (K/μL) | 10.1 (7.8–13.9) | 11.3 (8.4–15.1) | 8.7 (6.3–10.9) | 0.002 |
| C-reactive protein (n=145) 1.0–3.0 (mg/L) | 10.2 (5.1–18.0) | 11.7 (5.3–20.7) | 8.9 (4.3–13.9) | 0.03 |
| Ferritin (n=147) 18.0–320.0 (ng/mL) | 1208 (591–1786) | 1276 (714–1990) | 994 (478–1406) | 0.09 |
| Lactate dehydrogenase (n=135) 120–240 (IU/L) | 455 (328–572) | 458 (343–633) | 398 (276–515) | 0.05 |
| IL-6 (n=52) <17.4 pg/mL | 69.4 (27.5–201.3) | 69.4 (32.6–186.7) | 62.7 (19.9–361) | 0.77 |
| D-dimer (n=142) <0.59 mg/L | 3.1 (1.5–6.8) | 3.67 (1.84–7.75) | 1.65 (1.27–4.41) | 0.002 |
| Disposition, n (%) | 0.03 | |||
| Home (unassisted) | 62 (42) | 40 (37) | 22 (55) | |
| Skilled care facility | 47 (32) | 41 (38) | 6 (15) | |
| Death | 39 (26) | 27 (25) | 12 (30) |
Institutional reference ranges are reported for laboratory values.
ICU, intensive care unit; IL-6, interleukin-6; WBC, white blood cell count.