Table 1.

Demographic characteristics of probands

Variable	Probands
	Asian	Western	p
n	23	31
Male	15 (65.2%)	25 (80.6%)	0.3344
Age (mean ± SD)	42.8 ± 10.5	42.9 ± 16.8	0.9120

[probands are HBsAg-positive chronic hepatitis B index cases]