Table 1.
Clinical and demographic characteristics of the intensive care units
| ICU | All | Readmitted | Deaths on the ward | Non-readmitted | p value | |
| N | 1 | 546 | 43(13.7) | 39 (12.5) | 231 (73.8) | |
| 2 | 431 | 33 (9.3) | 15 (4.2) | 304 (70.5) | ||
| Male gender | 1 | 317 (58.1) | 23 (53.5) | 23 (59) | 130 (56.3) | 0.882 |
| 2 | 281 (65.2) | 19 (57.5) | 9 (60) | 205 (67.4) | 0.355 | |
| Age (years) | 1 | 57.75±16.3 | 61.91±13.18 | 58.67±15.5 | 56.81±16.24 | 0.319 |
| 2 | 48.56±17.8 | 56.03±17.91 | 61.60±19.84 | 45.55±17.28 | 0.000 | |
| Length of stay in ICU (days) | 1 | 13.7±19.22 | 15.30±17.69 | 16.79±19.3 | 13.91±15.98 | 0.571 |
| 2 | 10.04±8.8 | 8.44±8.43 | 12.40±6.03 | 10.39±9.11 | 0.314 | |
| GCS | 1 | 13.46±2.03 | 12.6±1.86 | 11.67±2.74 | 13.92±1.69 | 0.000 |
| 2 | 12.64±2.28 | 11.35±2.52 | 11.67±1.54 | 12.83±2.23 | 0.000 | |
| PaO2/FiO2 | 1 | 340.44±152.48 | 337.98±152.6 | 368.9±272.8 | 336±121.7 | 0.460 |
| 2 | 361.45±126 | 374.68±124.7 | 389.2±113.5 | 358.61±127.4 | 0.538 | |
| PaCO2 | 1 | 41.31±9.9 | 39.30±9.53 | 40.59±8.43 | 41.81±10.18 | 0.280 |
| 2 | 39.5±6.7 | 39.15±6.8 | 38.60±8.14 | 39.53±6.70 | 0.842 | |
| SWIFT | 1 | 20.34±9.87 | 23.53±9.65 | 26.28±10.5 | 18.74±9.29 | 0.000 |
| 2 | 20.87±10.9 | 22.24±11.5 | 25.27±8.00 | 20.50±10.98 | 0.194 |
ICU - intensive care unit; GCS - Glasgow Coma Scale; SWIFT -Stability and Workload Index for Transfer; PaO2 - arterial oxygen pressure; FiO2 - fraction of inspired oxygen; PaCO2 - partial pressure of carbon dioxide. Results expressed as number (%) or mean ± standard deviation. Mortality at 1st admission to ICUs: ICU1, 233 patients (42%) and ICU2, 78 patients (18%).