Retrospective Cohort Study on the Association Between a Laboratory Test‐Derived Frailty Index and Mortality in Elderly Critically Ill Patients With Chronic Kidney Disease
ABSTRACT Background/Aims Chronic kidney disease (CKD) represents a growing worldwide health concern. There is a need for easily obtainable markers that can improve risk evaluation in affected patients. Here, we investigated whether a laboratory‐derived frailty index (FI‐Lab) carries prognostic information for older CKD...