“…When E-PASS was applied to gastrointestinal and pulmonary surgery, the comprehensive risk score (CRS) correlated with mortality and morbidity rates [6,17,31]. We reported the postoperative hospital morbidity and mortality rates increased linearly with the preoperative risk score (PRS) and CRS and they correlated in patients who had undergone osteosynthesis or arthroplasty for hip fracture [8,9]. Furthermore, equations for predicting 30-day and inhospital mortality rates using the CRS correlated well with observed mortality rates in patients undergoing elective gastrointestinal surgery [7].…”