Preoperative modified frailty index-11 (mFI-11) vs. EuroSCORE II in predicting postoperative mortality and complications in elderly patients who underwent elective open cardiac surgery: A Retrospective Cohort Study

To compare sensitivity, specificity, receiver operating characteristic (ROC), and area under the curve (AUC) values using the modified Frailty Index 11 (mFI-11), EuroSCORE II, and combined mFI-11 and EuroSCORE II to predict in-hospital mortality and composite morbidities.