Table 1.
Description of the included population
| n = 172 patients | Cardiac surgery 23.3% | Non-cardiac surgery 37.2% | Internal medicine 40.5% | P value of difference | |
| Age in years, mean (SD) | 60 (14.9) | 67 (10.2) | 58 (14.4) | 58 (16.4) | 0.002a |
| Male gender | n = 102 | 28.4% | 39.2% | 32.4% | 0.04b |
| Female gender | n = 70 | 15.7% | 34.3% | 50.0% | |
| APACHE II score, mean (SD) | 20.6 (9.0) | - | 20.1 (8.0) | 21.1 (10.0) | 0.65a |
| TISS 28 score, mean (SD) | 28.6 (5.4) | 32.7 (4.7) | 28.4 (4.5) | 26.5 (5.4) | <0.001a |
| Length of stay in days, mean (SD) | 7.0 (8.9) | 5.7 (8.5) | 7.3 (10.2) | 7.4 (7.9) | 0.59a |
aP value of difference calculated with one-way analysis of variance. bP value of difference calculated with the chi-square test. APACHE, Acute Physiology And Chronic Health Evaluation; SD, standard deviation; TISS 28, Simplified Therapeutic Intervention Scoring System 28.