Patient characteristics for those with femoral or popliteal arterial and venous injuries with and without DVTs (n=207)
| Characteristic | Overall sample (n=207) | No DVT (n=193) | DVT (n=14) | P value* |
| Age, median (Q1, Q3) | 26 (22, 35) | 27 (22, 35) | 23 (22, 45) | 0.7199 |
| Gender, n (%) | >0.9999 | |||
| Male | 192 (92.8) | 179 (92.8) | 13 (92.9) | |
| Female | 15 (7.2) | 14 (7.2) | 1 (7.1) | |
| Race, n (%) | (n=185) | (n=172) | (n=13) | >0.9999 |
| White | 42 (22.7) | 39 (22.7) | 3 (23.1) | |
| Black | 134 (72.4) | 124 (72.1) | 10 (76.9) | |
| Asian | 3 (1.6) | 3 (1.7) | 0 (0.0) | |
| Other | 6 (3.3) | 6 (3.5) | 0 (0.0) | |
| ISS, median (Q1, Q3) | 10 (10, 17) | 10 (10, 17) | 17 (10, 27) | 0.0911 |
| TRISS, median (Q1, Q3) | 0.9868 (0.956, 0.990) (n=193) | 0.987 (0.958, 0.990) (n=179) | 0.974 (0.908, 0.982) | 0.0416 |
| AIS, median (Q1, Q3) | 3 (3, 4) | 3 (3, 4) | 3.5 (3, 4) | 0.2680 |
| SBP, mean (SD) | 109.14 (38.9) (n=203) | 109.38 (39.6) (n=189) | 105.93 (29.4) | 0.7498 |
| HR, mean (SD) | 96.5 (33.8) (n=204) | 95.28 (33.8) (n=191) | 114.38 (28.8) (n=13) | 0.0484 |
| GCS, median (Q1, Q3) | 15 (14, 15) (n=205) | 15 (14, 15) (n=191) | 15 (14, 15) | 0.7438 |
| Blood unit, median (Q1, Q3) | 0 (0, 2) (n=205) | 0 (0, 2) (n=191) | 0.5 (0, 2) | 0.3323 |
| MTP, n (%) | 26 (23.9) (n=109) | 21 (20.4) (n=103) | 5 (83.3) (n=6) | 0.0028 |
| ICU LOS, median (Q1, Q3) | 2 (1, 3) | 1 (1, 3) | 5 (2, 7) | 0.0008 |
| Step-down LOS, median (Q1, Q3) | 0 (0, 0) | 0 (0, 0) | 0 (0, 0) | 0.6503 |
| Ventilator days, median (Q1, Q3) | 0 (0, 1) | 0 (0, 1) | 1.5 (1, 2) | 0.0007 |
| Hospital LOS, median (Q1, Q3) | 9 (4, 16) | 9 (4, 15) | 17.5 (12, 23) | 0.0013 |
| Mortality, n (%) | 16 (7.7) | 15 (7.7) | 1 (7.1) | >0.9999 |
| Procedure, n (%) | 0.2370 | |||
| Endovascular repair | 41 (19.8) | 39 (20.2) | 2 (14.3) | |
| Open repair | 29 (14.0) | 25 (13.0) | 4 (28.6) | |
| Hybrid repair | 55 (26.6) | 50 (25.9) | 5 (35.7) | |
| No intervention | 82 (39.6) | 79 (40.9) | 3 (21.4) | |
*P values based on non-parametric Wilcoxon rank-sum tests or parametric two-sample t-tests for continuous variables and Fisher’s exact tests for categorical variables.
AIS, Abbreviated Injury Scale; DVT, deep venous thrombosis; GCS, Glasgow Coma Scale; HR, heart rate; ICU, intensive care unit; ISS, Injury Severity Score; LOS, length of stay; MTP, massive transfusion protocol; SBP, systolic blood pressure; TRISS, Trauma and Injury Severity Score.