Additional file 1 of Validation of the BATT score for prehospital risk stratification of traumatic haemorrhagic death: usefulness for tranexamic acid treatment criteria

Additional file 1: Supplementary file 1. Abbreviated Injury Scale diagnosis associated with haemorrhage. Supplementary file 2. Formula for the Brier Score and Scaled Brier Score. Supplementary file 3. Methods to model tranexamic acid treatment effect and death due to bleeding avoided. Supplementary file 4. Receiving Operator Curve for external validation of the BATT score. Supplementary Figure 5. Sensitivity and specificity according to BATT score for death due to bleeding. Supplementary file 6. Calibration curve for external validation of the BATT score.