Comparison of MGAP, GAP, and RTS for Predicting Early Mortality in Multiple Trauma Patients

Abstract

Aim: Trauma scoring systems help physicians recognize trauma severity. The purpose of this study was to compare the diagnostic accuracy of the revised trauma score (RTS), Glasgow coma scale (GCS), age, and arterial pressure (GAP), and the mechanism of GCS, age, and arterial pressure (MGAP) to predict early in-hospital mortality. Materials and Methods: This was a retrospective cross-sectional study of multiple trauma patients who presented to the emergency department from March 2021 to December 2021. The GAP, MGAP, and RTS scores were calculated according to the physiological variables collected by the pre-hospital emergency system personnel. The area under the receiver operating characteristic (AUROC) curve was used to compare all scores in predicting 24-h mortality. Results: Of the 263 patients included in this study, 19 (7.2%) died within 24 h. The mean age was 38.23±15.75 years, and 82 (31.2%) patients were female. The survived and non-survived patients had significant differences in age (p=0.004), systolic blood pressure (p<0.001), heart rate (p=0.001), and GCS (p<0.001). AUROCs of RTS, GAP, and MGAP scores to predict 24-h mortality were 0.921 [95% confidence interval (CI): 0.882-0.951], 0.909 (95% CI: 0.867-0.941), and 0.898 (95% CI: 0.855-0.932), respectively. There was no significant difference in the scores for predicting the early mortality rate. Conclusion: The RTS, GAP, and MGAP scores were good predictors of 24-h mortality, and they were similar in predicting early mortality in multiple trauma patients.

Keywords

• emergency
• mortality
• injury
• scoring system