Patients' characteristics at enrolment of the study.

*no, N; yes, Y;†male, M; female, F;♣C-reactive protein ,CRP (normal values: 0–0.6 mg/dl);♦normal values: 3.8–10.5 G/l; hemoglobin, Hb (normal values: 120–157 g/l).‡cyclosporine A, CsA; mycophenolate mofetil, MMF; glucocorticoids, GC; monoclonal anti-human IL-2 receptor antibodies (daclizumab, zenapax™), aIL2R; tacrolimus, FK-506; rapamycine, RAP; monoclonal anti-human CD52 antibodies (alemtuzumab, campath™), anti-CD52 Ab; leflunomide analogue FKK-778, FKK-778; ATG Fresenius, ATG.Decompensated cirrhosis hepatis, CirrhHep; diabetes mellitus with nephropathy, DM; glomerulonephritis, GN; Kidney, K; lung, L; pancreas, P; polycystic nephropathy, PC; transplant, TX.