Demographics and mechanism of injury for case–control match
| Demographics | TQ+ (n=69) | TQ− (n=69) | P value |
| Age, mean (SEM), years | 35.0 (1.5) | 36.3 (1.6) | NS |
| Male gender, n (%) | 56 (81) | 53 (77) | NS |
| ISS, mean (SEM) | 13.1 (0.8) | 12.3 (0.9) | NS |
| Extremity AIS, mean (SEM) | 3.2 (0.1) | 3.0 (0.1) | NS |
| Mechanism of injury | |||
| Gunshot wounds, n (%) | 10 (14) | 15 (22) | NS |
| Knife wounds/stabbing, n (%) | 12 (17) | 11 (16) | |
| Glass/saw/other penetrating, n (%) | 17 (25) | 10 (14) | |
| Bite, n (%) | 1 (1) | 2 (3) | |
| Motor vehicle collision, n (%) | 11 (16) | 9 (13) | |
| Motorcycle/All-terrain vehicles, n (%) | 12 (17) | 15 (22) | |
| Pedestrian/Fall, n (%) | 6 (9) | 7 (10) |
AIS, Abbreviated Injury Score; ISS, Injury Severity Score; NS, not significant; TQ−, without tourniquet placement; TQ+, with prehospital tourniquet.