Characteristics of the transplanted patients, ESRD patients and normal subjects in the study.

ECD: expanded criteria donors according to Crystal City Meeting criteria [35]. GFR: glomerular filtration rate. Histological score: performed on pretransplant biopsies according to a semiquantitative method [25]. APKD: adult polycystic kidney disease; Gn: glomerulonephritis; LD: living donor; DD: deceased donor. ID: immunosuppressive therapy. ESRD: end-stage kidney disease. Continuous variables are express as mean ± SD.