Example Table. Characteristics of the Study Base at Enrolment, Castellana G (Italy), 1985-1986

	HCV-Negative n-1458	HCV-Positive n-511	Unknown n-513
Sex (%)
Male	936 (64%)	296 (58%)	197 (39%)
Female	522 (36%)	215 (42%)	306 (61%)
Mean age at enrolment (SD)	45.7 (10.5)	52.0 (9.7)	52.5 (9.8)
Daily alcohol intake (%)
None	250 (17%)	129 (25%)	119 (24%)
Moderatea	853 (59%)	272 (53%)	293 (58%)
Excessiveb	355 (24%)	110 (22%)	91 (18%)

HCV, Hepatitis C virus.
Males <60 g ethanol/day, fernales <30 g ethanol/day.
Males >60 g ethanol/day, females >30 g ethanol/day.
Table adapted from Osella et al. [143].