Prevalence of occult hepatitis B virus infection in haemodialysis patients from central Greece

Table 1 Characteristics of 366 ESRF patients (mean ± SD)

	ESRF patients (n = 366)
Sex (M/F)	243/123
Age (mean/range, yr)	60.5/17-85
Haemodialysis duration (mo)1	49.2 ± 48.2
Dialysis type (haemodialysis/peritoneal dialysis)	352/14
Known history of viral hepatitis (yes/no)2	51/315
History of transfusions (yes/no)	129/247
Number of blood units	6.8 ± 4.7
Duration of erythropoietin treatment (mo)	46.2 ± 35.8

¹Haemodialysis duration was calculated from the date of the first haemodialysis procedure to the date of the collection of the sera;

²Proven history of viral hepatitis, either icteric or anicteric. M: Male; F: Female; ESRF: End-stage renal failure.