Table 1 Baseline characteristics
Category | Variable | Capacity transfer | No transfer | P-value |
|---|---|---|---|---|
Demographic | Age years, median (Q1;Q3) | 67 (55;74) | 68 (54;76) | 0.004 |
Women, n (%) | 1104 (38) | 55,891 (41) | < 0.001 | |
Surgical status | No surgery, n (%) | 2245 (77) | 91,957 (68) | < 0.001 |
Acute surgery, n (%) | 462 (16) | 15,973 (12) | ||
Elective surgery, n (%) | 205 (7) | 27,711 (20) | ||
Risk scores | SAPS 3 score, mean (SD) | 64 (14) | 56 (16) | < 0.001 |
SAPS 3 estimated mortality rate, median (Q1;Q3) | 24 (11;45) | 11 (3;30) | < 0.001 | |
SOFA on day 1, median (Q1;Q3) | 8 (5;10) | 6 (3;9) | < 0.001 | |
Burden of care | NEMS, total score, median (Q1;Q3) | 84 (39;180) | 52 (34;88) | < 0.001 |
NEMS, mean score, median (Q1;Q3) | 39 (32;49) | 34 (25;43) | < 0.001 | |
Readmission | Transferred on readmission, n (%) | 684 (23) | – | |
Any readmission during 90 days, n (%) | – | 11,635 (9) | ||
Time before event | Days in the ICU, days, median (Q1;Q3) | 3 (1;6) | 2 (1;3) | < 0.001 |
Main ICU diagnosis | Infection/sepsis, except pneumonia, n (%) | 416 (14) | 13,849 (11) | < 0.001 |
Malignancy, n (%) | 6 (0) | 2043 (2) | < 0.001 | |
Hematology, n (%) | 5 (0) | 333 (0) | 0.350 | |
Endocrinal disease, n (%) | 56 (2) | 7628 (6) | < 0.001 | |
Intoxication, n (%) | 123 (4) | 9149 (7) | < 0.001 | |
Neurological disorder, n (%) | 161 (6) | 7303 (6) | 0.666 | |
Cardiac disease, n (%) | 124 (4) | 7108 (6) | 0.002 | |
Cardiac arrest, n (%) | 309 (11) | 6903 (5) | < 0.001 | |
Subarachnoid haemorrhage, n (%) | 48 (2) | 1302 (1) | < 0.001 | |
Cerebrovascular event, n (%) | 114 (4) | 3881 (3) | 0.007 | |
Aortic rupture/dissection, n (%) | 41 (1) | 1304 (1) | 0.041 | |
Peripheral aortic disease, n (%) | 22 (1) | 2714 (2) | < 0.001 | |
Musculoskeletal disorder, n (%) | 1 (0) | 92 (0) | 0.451 | |
Shock, undefined, n (%) | 20 (1) | 2112 (2) | < 0.001 | |
Respiratory tract infection, incl pneumonia, n (%) | 385 (13) | 6792 (5) | < 0.001 | |
Airway disorder, n (%) | 39 (1) | 1328 (1) | 0.116 | |
COPD/asthma/other respiratory disease, n (%) | 450 (16) | 11,762 (9) | < 0.001 | |
Acute renal failure/urological disease, n (%) | 47 (2) | 2882 (2) | 0.021 | |
Acute abdomen, n (%) | 80 (3) | 7160 (6) | < 0.001 | |
Liver failure, n (%) | 22 (1) | 1066 (1) | 0.643 | |
Pancreatitis/cholecystitis, n (%) | 40 (1) | 1393 (1) | 0.147 | |
Psychiatric disorder, n (%) | 1 (0) | 121 (0) | 0.292 | |
Major haemorrhage, n (%) | 0 (0) | 564 (0) | < 0.001 | |
Trauma, n (%) | 181 (6) | 6055 (5) | < 0.001 | |
Surgical complications, n (%) | 47 (2) | 3910 (3) | < 0.001 | |
Transplantation, n (%) | 0 (0) | 661 (1) | < 0.001 | |
Isolated traumatic brain injury, n (%) | 116 (4) | 3287 (3) | < 0.001 | |
Pregnancy related disorders, n (%) | 0 (0) | 998 (1) | < 0.001 | |
Postoperative care, n (%) | 27 (1) | 12,696 (10) | < 0.001 | |
Co-morbidities | Cancer treatment, n (%) | 140 (5) | 6162 (5) | 0.633 |
Chronic heart failure, n (%) | 142 (5) | 7439 (6) | 0.007 | |
Hematological malignancy, n (%) | 64 (2) | 2194 (2) | 0.101 | |
Liver cirrhosis, n (%) | 49 (2) | 2710 (2) | 0.058 | |
AIDS, n (%) | 3 (0) | 97 (0) | 0.506 | |
Active cancer, n (%) | 138 (5) | 10,645 (9) | < 0.001 |