Characteristics of patients who underwent CT imaging and those who did not
| Variables | No imaging | Imaging | P value |
| n=837 | n=1475 | ||
| Female, n (%) | 537 (64.2) | 871 (59.1) | 0.017 |
| Age (mean±SD) | 81.6±8.2 | 80.0±8.7 | <0.001 |
| Mechanism of injury, n (%) | |||
| Fall from standing | 768 (91.8) | 1312 (88.9) | 0.062 |
| Fall from chair | 31 (3.7) | 85 (5.8) | |
| Fall from bed | 38 (4.5) | 78 (5.3) | |
| GCS, median (range) | 15 (3–15) | 15 (3–15) | >0.999 |
| Head/face injuries, n (%) | |||
| Intracranial haemorrhage | 96 (11.5) | 822 (55.7) | <0.001 |
| Skull fracture | 13 (1.6) | 90 (6.1) | <0.001 |
| Facial bone fracture | 21 (2.5) | 173 (11.7) | <0.001 |
| Mandible fracture | 6 (0.7) | 11 (0.7) | >0.999 |
GCS, Glasgow coma scale.