External validation of the Simplified Mortality Score for the Intensive Care Unit (SMS‐ICU)

Background The Simplified Mortality Score for the Intensive Care Unit (SMS‐ICU) is a clinical prediction model, which estimates the risk of 90‐day mortality in acutely ill adult ICU patients using 7 readily available variables. We aimed to externally validate the SMS‐ICU and compare its discrimination with existing prediction models used with 90‐day mortality as the outcome. Methods We externally validated the SMS‐ICU using data from 3282...