Table 1. Characteristics of the whole cohort and of participants according to HBV and HCV serostatus.

Characteristics	Whole cohort	HBV chronic carriers	HBV neg	HVC chronic carriers	HCV neg
n (%)	319 (100)	36 (11.3)	283 (88.7)	61 (19.1)	258 (80.9)
male (%)	136 (42.6)*	22 (61.1)	114 (40.3)	24 (39.3)	112 (43.4)
female (%)	183 (57.4)	14 (39.9)	169 (59.7)	37 (61.7)	146 (56.4)
age range	13–85	15–57	13–85	13–85	15–78
mean age (+/−SD)	38.2 (+/−18.6)	27.0 (+/−9.9)	39.6 (+/−18.9)	57.7 (+/−14.3)	33.6 (+/−16.3)
range GOT	6–609	7–249	6–609	9–154	6–609
mean GOT (+/−SD)	26 (+/−40)	36 (+/−43)	25 (+/−40)	31(+/−25)	25 (+/−43)
range GPT	5–1473	8–289	5–1473	8–163	5–1473
mean GPT (+/−SD)	25 (+/−84)	31 (+/−50)	25 (+/−88)	26 (+/−23)	25 (+/−93)
abnormal levels of transaminases n (%)	32 (10.1)	7 (19.5)	25 (8.9)	13 (21.7)	19 (7.4)

P = 0.0004

£ two persons not tested.