Table 1 Baseline characteristics
SOD (n = 489) | SDD (n = 507) | p value | |
|---|---|---|---|
Characteristic | |||
Mean age (mean + SD) (years) | 59.5 + 15.6 | 59.6 + 15.3 | 0.93 |
Male (%) | 61.0 | 63.3 | 0.51 |
Planned ICU admission (%) | 22.2 | 16.1 | 0.03 |
Surgical | 47.0 | 48.6 | 0.18 |
Medical | 53.0 | 51.4 | 0.18 |
Apache IV score | 75.9 ± 26.3 | 73.2 ± 27.3 | 0.22 |
Referring speciality (%) | |||
Cardiology | 8.6 | 7.3 | 0.92 |
Internal medicine | 13.6 | 9.4 | 0.19 |
Pulmonology | 3.2 | 4.3 | 0.30 |
Neurology | 5.8 | 10.0 | 0.01 |
Surgery | 20.0 | 19.0 | 0.73 |
Thoracic surgery | 27.4 | 17.7 | 0.01 |
Neurosurgery | 7.8 | 10.4 | 0.07 |
Other | 13.6 | 21.9 | 0.01 |
Mechanical ventilation (%) | 90.5 | 90.7 | 0.96 |
CPR before ICU admission | 9.0 | 11.6 | 0.24 |
Acute renal failure | 9.2 | 7.9 | 0.56 |
Stroke | 5.7 | 9.3 | 0.06 |
Confirmed infection at ICU admission | 27.1 | 31.0 | 0.23 |
COPD | 7.7 | 9.1 | 0.54 |
Diabetes mellitus | 11.5 | 15.4 | 0.11 |
Chronic renal failure | 5.3 | 7.7 | 0.19 |
Chronic dialysis | 1.5 | 1.2 | 0.85 |
Metastasized cancer | 2.4 | 1.9 | 0.73 |
Cirrhosis | 1.5 | 0.9 | 0.61 |
Immune deficiency | 10.5 | 9.8 | 0.96 |
Hematologic cancer | 4.0 | 3.7 | 0.99 |
Heart failure III-IV/IV NYHA | 7.5 | 6.1 | 0.48 |
Resp. failure III-IV/IV NYHA | 5.9 | 5.1 | 0.70 |
ICU length of stay (days) | 13.4 ± 13.8 | 12.8 ± 12.4 | 0.52 |
Hospital survival (%) | 87.9 | 87.9 | 0.92 |