Prospective validation of the Urgent Surgery Elderly Mortality risk score (USEM)

Introduction We aimed to test the predictive ability and to compare the predictive ability of the USEM to SRS, SORT and ASA in a prospective sample. Patients and methods A Prospective cohort of >65-year-old patients undergoing urgent abdominal surgery in a Hospital. Models calibration and discrimination were evaluated using the receiver operating characteristics curves and the Hosmer-Lemeshow test. Results A total of 500 patients with a median...