Table 1: Demographic and clinical characteristics of 92 patients screened.

Males/females54/38
Age (mean)68.6 years
Haemodialysis/peritoneal dialysis67/25
Caucasian 88
Asiatic/African2/2
HBsAg-positive/HIV-positive2/1
Primitive renal disease
 Hypertensive nephropathy31
 Diabetes mellitus26
 Polycystic kidneys9
 Chronic glomerulonephritis12
 Tubulointerstitial diseases6
 Other4
 Undetermined2