“…A simplifi ed 5-item version of the International Index of Erectile Function (IIEF-5) was used as a diagnostic tool for ED evaluation 13 and to further divide study subjects into diff erent ED categories. According to the IIEF-5 score, the patients were categorized as no ED (ED 0; score [22][23][24][25], ED 1 (score 17-21), ED 2 (score 12-16), ED 3 (score 8-11) and ED 4 group (score ≤7). Th e groups were then compared according to serum levels of 25(OH)D, complete blood count, hemoglobin, PTH, fasting blood glucose, creatinine, high-sensitivity C-reactive protein (hs-CRP), cholesterol and triglycerides per body mass index (BMI), duration of renal replacement therapy (RRT) before TX, and kidney graft duration until analysis.…”