Table 1.
Demographics, type of activity leading to the accident and mechanism of injury, subdivided by the three subgroups
| TBI with hypotension (group 1) n = 50 |
TBI without hypotension (group 2) n = 92 |
No TBI (group 3) n = 145 |
p-value | |
|---|---|---|---|---|
| Demographics | ||||
| Age, years, mean ± SD | 46.4 ± 19.2 | 42.4 ± 18.5 | 44.5 ± 17.2 | 0.452 |
| Female sex, n (%) | 16 (32%) | 20 (22%) | 21 (14%) | 0.024 |
| Type of activity | ||||
| Aviation, n (%) | 1 (2%) | 4 (4%) | 15 (10%) | 0.066 |
| Climbing, n (%) | 6 (12) | 15 (16%) | 16 (11%) | 0.478 |
| Hiking, n (%) | 22 (44%) | 24 (26%) | 26 (18%) | 0.001 |
| Mountain biking, n (%) | 0 (0%) | 2 (2%) | 10 (7%) | 0.056 |
| Ski / snowboard, n (%) | 11 (22%) | 33 (36%) | 53 (37%) | 0.141 |
| Sledging, n (%) | 2 (4%) | 2 (2%) | 3 (2%) | 0.738 |
| Other, n (%) | 8 (16%) | 11 (12%) | 21 (15%) | 0.786 |
| Mechanism of injury | ||||
| Avalanche, n (%) | 1 (2%) | 4 (4%) | 8 (6%) | 0.579 |
| Collision with object / other person, n (%) | 11 (22%) | 29 (32%) | 27 (19%) | 0.087 |
| Fall, n (%) | 37 (76%) | 59 (64%) | 105 (74%) | 0.203 |
| Other, n (%) | 0 (0%) | 0 (0%) | 2 (1%) | 0.368 |
Tests performed were Pearson’s chi-squared tests, except for age ANOVA
TBI traumatic brain injury