Table 2.
Patient demographics and clinical characteristics
| All cases | Polytrauma patients | Berlin+ | Berlin- | Non-polytrauma | ||
|---|---|---|---|---|---|---|
| Count | n | 3359 | 979 | 500 | 479 | 2380 |
| Gender | Female | 932 (27.7%) | 258 (26.4%) | 152 (30.4%) | 106 (22.1%) | 674 (28.3%) |
| Male | 2427 (72.3%) | 721 (73.6%) | 348 (69.6%) | 373 (77.9%) | 1706 (71.7%) | |
| Age (y) | Mean ± SD | 51 ± 20 | 43 ± 21 | 45 ± 23 | 40 ± 17 | 54 ± 20 |
| Median (IQ25,75) | 53 (34,65) | 42 (24,59) | 44 (23,65) | 41 (25,54) | 56 (41,68) | |
| NISS | Mean ± SD | 31 ± 12 | 36 ± 13 | 41 ± 13 | 31 ± 9 | 29 ± 10 |
| Median (IQ25,75) | 29 (24,38) | 34 (27,43) | 41 (29,50) | 29 (27,34) | 26 (22,34) | |
| ICU | % | 79 | 81 | 82 | 81 | 78 |
| ICU (d) | Mean ± SD | 7 ± 8 | 10 ± 9 | 12 ± 10 | 7 ± 7 | 5 ± 6 |
| Median (IQ25,75) | 4 (2,9) | 7 (3,13) | 9 (5,16) | 5 (3,10) | 4 (2,7) | |
| Ventilated (d) | Mean ± SD | 4 ± 6 | 5 ± 8 | 6 ± 9 | 3 ± 5 | 3 ± 5 |
| Median (IQ25,75) | 1 (0,5) | 2 (0,7) | 4 (0,10) | 0 (0,4) | 1 (0,4) | |
| LOS (d) | Mean ± SD | 12 ± 12 | 14 ± 13 | 15 ± 15 | 13 ± 10 | 11 ± 12 |
| Median (IQ25,75) | 9 (4,15) | 11 (6,18) | 11 (4,21) | 10 (6,16) | 8 (4,14) | |
| GCS | 13–15 | 2214 (66.2%) | 623 (63.7%) | 196 (39.3%) | 427 (89.1%) | 1591 (67.2%) |
| 9–12 | 339 (10.1%) | 85 (8.7%) | 33 (6.6%) | 52 (10.9%) | 254 (10.7%) | |
| 5–8 | 314 (9.4%) | 94 (9.6%) | 94 (18.8%) | 0 | 220 (9.3%) | |
| 3–4 | 477 (14.3%) | 176 (18.0%) | 176 (35.3%) | 0 | 301 (12.7%) |
NISS, New injury severity score; GCS, Glasgow Coma Score; AIS, abbreviated injury score; ICU, intensive care unit; LOS, length of stay in hospital, d, days; y, years; ICU (%), percentage of patients that were treated in the ICU