Evaluation of MGAP and GAP Trauma Scores to Predict Prognosis of Multiple-Trauma Patients

Accurate early prognosis is critical in trauma care. This study evaluated the GAP (Glasgow Coma Scale, Age, systolic Pressure) and MGAP (Mechanism, GAP) scores for predicting mortality in multiple-trauma patients. In a retrospective analysis of 708 patients admitted to a single emergency center in 2023, deceased patients (6.9%) showed significantly lower GAP and MGAP scores than survivors (p<0.001). The area under the ROC curve was 0.887 for GAP and 0.899 for MGAP, demonstrating very good discriminatory performance. Optimal cut-off points were 18.5 for GAP and 22.5 for MGAP. Both scores are effective tools for predicting mortality at admission, with MGAP providing only marginal incremental value over the simpler GAP score.