Parameter estimates using the Lasso method and the corresponding effect on the OR when using TXA_noblank
| Predictor variable | VTE | Pulmonary embolism | Deep vein thrombosis | |||
| Parameter estimate | OR | Parameter estimate | OR | Parameter estimate | OR | |
| Injury type: burn | −0.866 | 0.421 | −0.315 | 0.730 | 0.000 | – |
| Mechanism of injury: knife/sharp object | 0.730 | 2.075 | 0.000 | – | 1.838 | 6.284 |
| Service branch: navy | −0.133 | 0.875 | −0.129 | 0.879 | 0.000 | – |
| AIS extremities | 0.077 | 1.080 | 0.198 | 1.219 | 0.000 | – |
| Service branch: marine | 0.037 | 1.038 | 0.000 | – | 0.000 | – |
| Mechanism of injury: MVC | 0.033 | 1.034 | 0.725 | 2.065 | 0.000 | – |
| Days in ICU | 0.018 | 1.018 | 0.000 | – | 0.007 | 1.007 |
| AIS abdomen | 0.016 | 1.016 | 0.013 | 1.013 | 0.000 | – |
| First 24 hours transfusion: platelets | 0.014 | 1.014 | 0.000 | – | 0.047 | 1.048 |
| Tourniquet | −0.013 | 0.987 | 0.000 | – | −0.092 | 0.912 |
| First 24 hours transfusion: whole blood | −0.008 | 0.992 | −0.015 | 0.985 | 0.000 | – |
| Days in hospital | 0.005 | 1.005 | 0.006 | 1.006 | 0.004 | 1.004 |
| Service branch: air force | 0.002 | 1.002 | 0.000 | – | 0.219 | 1.245 |
| Composite ISS | 0.000 | – | 0.000 | – | 0.000 | – |
| First 24 hours transfusion: PRBC | 0.000 | – | 0.000 | – | 0.000 | – |
| First 24 hours transfusion: cryoprecipitate | 0.000 | – | 0.000 | – | 0.000 | – |
| First 24 hours transfusion: FFP | 0.000 | – | 0.000 | – | 0.002 | 1.002 |
| Estimated blood loss first 24 hours | 0.000 | – | 0.000 | – | 0.000 | – |
| Age | 0.000 | – | 0.000 | – | 0.000 | – |
| Injury year | 0.000 | – | 0.011 | 1.011 | 0.000 | – |
| Days on ventilator | 0.000 | – | 0.000 | – | 0.000 | – |
| TXA_noblank | 0.000 | – | 0.000 | – | 0.000 | – |
| AIS head/neck | 0.000 | – | 0.000 | – | 0.000 | – |
| AIS face | 0.000 | – | 0.000 | – | 0.000 | – |
| AIS chest/thorax | 0.000 | – | 0.000 | – | 0.000 | – |
| AIS skin | 0.000 | – | 0.000 | – | 0.011 | 1.011 |
| Service branch: army | 0.000 | – | 0.000 | – | −0.217 | 0.805 |
| Mechanism of injury: bullet/GSW/firearm | 0.000 | – | 0.000 | – | −0.006 | 0.994 |
| Mechanism of injury: crush | 0.000 | – | 0.000 | – | 0.228 | 1.256 |
| Mechanism of injury: explosive | 0.000 | – | 0.000 | – | 0.000 | – |
| Mechanism of injury: helicopter crash | 0.000 | – | 0.000 | – | 0.000 | – |
| Mechanism of injury: machinery/equipment | 0.000 | – | 0.000 | – | 0.000 | – |
| Mechanism of injury: pedestrian | 0.000 | – | 0.000 | – | 0.000 | – |
| Mechanism of injury: plane crash | 0.000 | – | 0.000 | – | 0.000 | – |
The variables are sorted by the magnitude of the parameter estimates for VTE.
FFP, fresh frozen plasma; GSW, gun shot wound; ICU, intensive care unit; ISS, injury severity score; MVC, motor vehicle crash; PRBC, packed red blood cell; TXA, tranexamic acid; VTE, venous thromboembolism.