Model to estimate the nursing workload required by trauma victims on intensive care unit discharge

Aim To validate a model to estimate the nursing workload required by trauma victims on intensive care unit (ICU) discharge. Background Identifying a reliable model of nursing workload measurement that can assist professionals. Methods A prospective cohort study conducted in 2010 (first phase) and 2015 (second phase) with 342 trauma victims admitted into the ICU of four hospitals located in São Paulo, Brazil. The original model was created during the first phase and included the Simplified Acute Physiology Score and New Injury Severity Score variables. Coefficients of determination (R2) were calculated to identify the reliability. Results The original model presented high reliability (R2 = 44%) in the hospital of origin, and unsatisfactory performance (R2