TABLE 1.
Characteristics and outcomes of non‐transferred and transferred COVID‐19 patients
| Non‐transferred | Transferred | |
|---|---|---|
| Number of patients, N (%) | 7395 (72.4) | 2814 (27.6) |
| Sex = Male, N (%) | 5118 (69.2) | 2033 (72.2) |
| Age, median (IQR) | 64.0 (56.0–72.0) | 64.0 (57.0–71.0) |
| Age group | ||
| <40 | 318 (4.3) | 87 (3.1) |
| 40–45 | 206 (2.8) | 60 (2.1) |
| 45–50 | 381 (5.2) | 148 (5.3) |
| 50–55 | 701 (9.5) | 278 (9.9) |
| 55–60 | 998 (13.5) | 367 (13) |
| 60–65 | 1119 (15.1) | 486 (17.3) |
| 65–70 | 1285 (17.4) | 514 (18.3) |
| 70–75 | 1356 (18.3) | 542 (19.3) |
| 75–80 | 806 (10.9) | 280 (10) |
| 80–85 | 204 (2.8) | 50 (1.8) |
| ≥85 | 21 (0.3) | 2 (0.1) |
| Mechanical ventilation in 1st 24 h of ICU admission, N (%) | 4159 (56.2) | 2354 (83.7) |
| APACHE III‐score, median (IQR) | 60.0 (49.0–72.0) | 58.0 (47.0–69.0) |
| APACHE IV mortality probability, median (IQR) | 0.2 (0.1–0.4) | 0.2 (0.1–0.3) |
| APACHE IV mortality probability | ||
| <0.3 | 4814 (66.5) | 1964 (70.3) |
| 0.3–0.7 | 2175 (30) | 779 (27.9) |
| ≥0.7 | 255 (3.5) | 51 (1.8) |
| BMI, median (IQR) | 28.6 (25.7–32.4) | 28.7 (26.0–32.4) |
| BMI group | ||
| <18.5 | 33 (0.4) | 4 (0.1) |
| 18.5–25 | 1413 (19.1) | 511 (18.2) |
| 25–30 | 3000 (40.6) | 1169 (41.5) |
| 30–35 | 1833 (24.8) | 727 (25.8) |
| 35–40 | 744 (10.1) | 285 (10.1) |
| >40 | 372 (5) | 118 (4.2) |
| Vasoactive medication = yes, N (%) | 3351 (45.3) | 1878 (66.7) |
| Acute renal failure = yes, N (%) | 545 (7.4) | 130 (4.6) |
| Comorbidities | ||
| Diabetes = yes, N (%) | 1740 (23.5) | 589 (20.9) |
| Immunological insufficiency = yes, N (%) | 753 (10.2) | 185 (6.6) |
| Renal failure = yes, N (%) | 337 (4.6) | 73 (2.6) |
| COPD/Respiratory insufficiency = yes, N (%) | 968 (13.1) | 346 (12.3) |
| Malignancy/hematological malignancy = yes, N (%) | 204 (2.8) | 33 (1.2) |
| Comorbidities | ||
| None | 4243 (57.4) | 1782 (63.3) |
| 1 | 2314 (31.3) | 848 (30.1) |
| >1 | 838 (11.3) | 184 (6.5) |
| Died in hospital, N (%) | 2040 (27.6) | 754 (26.8) |
| Died 180 days after ICU admission, N (%) | 2142 (29.0) | 787 (28.0) |
| ICU length of stay in 1st ICU before transfer, median (IQR) | ‐ | 3.0 (2.0–5.0) |
| Total ICU length of stay, median (IQR) | 10.0 (5.0–19.0) | 18.0 (11.0–32.0) |
| Hospital length of stay in days, median (IQR) | 18.0 (11.0–31.0) | 26.0 (17.0–42.0) |
Abbreviations: APACHE, Acute Physiology and Chronic Health Evaluation; BMI, body mass index; COPD, chronic obstructive pulmonary disease; ICU, intensive care unit; IQR, interquartile range.