Characteristics of patients with isolated traumatic brain injury categorised by age group
| Age | ||
|---|---|---|
| <65 years n=244 | ≥65 years n=317 | |
| Demographics | ||
| Women | 62 (25.4%) | 147 (46.4%) |
| Age (mean (SD)) | 39.2 (17.9) | 81.6 (8.0) |
| Mechanism of injury | ||
| Fall <2 m | 92 (37.7%) | 274 (86.4%) |
| Fall >2 m | 51 (20.9%) | 21 (6.6%) |
| RTC | 51 (20.9%) | 14 (4.4%) |
| Blow | 40 (16.4%) | 5 (1.6%) |
| Other | 10 (4.1%) | 3 (0.9%) |
| Anatomical injury severity | ||
| ISS | 18 (16.25) | 18 (16.25) |
| Head AIS 3 | 45 (18.4%) | 37 (11.7%) |
| Head AIS 4 | 108 (44.3%) | 137 (43.2%) |
| Head AIS 5 | 91 (37.3%) | 143 (45.1%) |
| Presenting GCS severity | ||
| Mild (GCS 13–15) | 163 (66.8%)* | 237 (74.8%)* |
| Moderate (GCS 9–12) | 27 (11.1%)* | 49 (15.5%)* |
| Severe (GCS 3–8) | 54 (22.1%)* | 31 (9.8%)* |
Data are presented as median (IQR) or n (%) unless otherwise stated.
*p<0.001 from χ2 analysis.
AIS, abbreviated injury scale; RTC, Road traffic collision.