Comparison of Revised Baux, Belgian Outcome of Burn Injury, and Abbreviated Burn Severity Index Scores as Model Predictors of Mortality in Burn Patients: A Retrospective Study

Background: Burns continue to be a major cause of morbidity and mortality worldwide. Predictor models in burn patients have been developed to help clinicians determine mortality risk. These include the revised Baux (rBaux), Belgian Outcome of Burn Injury (BOBI), and Abbreviated Burn Severity Index (ABSI) scores. This study aims to compare rBaux, BOBI, and ABSI scores as model predictors of mortality in burn patients.Methods: This is a retrospective study with an observational analytic design using secondary data obtained from research variables in the medical records of burn injury inpatients at Dr. Soetomo General Academic Hospital Surabaya, a tertiary center in Surabaya, from January 2020 to December 2022. Research subjects were selected using a total sampling method with inclusion and exclusion criteria. Diagnostic tests were carried out to obtain the results of sensitivity, specificity, negative predictive value, and positive predictive value.Results: The study sample size was 197 patients. rBaux, BOBI, and ABSI scores were shown to have the same significance in predicting mortality in burn patients. Sensitivity and specificity and receiver operating characteristic analysis for each score were similar, making them all reliable in predicting mortality for burn patients.Conclusion: Mortality scores in burn patients such as the rBaux, BOBI, and ABSI can be used effectively to determine outcomes. The simplicity of the rBaux score enables it to be used earlier to help determine patient mortality and the need for more intensive care.