Systematic Review of Emergency Severity Index (ESI) triage tool's utility in predicting mortality and critical care unit admission in Emergency Departments

The ESI triage tool demonstrated strong validity and reliability in predicting mortality rates and critical care admissions across diverse adult populations. Studies showed that ESI performs comparably or better than other triage systems and can be enhanced when combined with clinical parameters. Consistent application and proper training were identified as crucial factors for optimizing its predictive accuracy and clinical utility in emergency settings.