Table 1.

Demographics of CHB study cohort (n = 12,016)

	n	%
Agea
18–35	1,556	12.9
35–49	4,723	39.3
50–65	4,490	37.4
>65	1,247	10.4
Men	6,070	50.5
Race/ethnicity
Asianb	9,945	82.8
Chinese	4,935	41.1
Vietnamese	1,570	13.1
Filipino	1,626	13.5
Korean	190	1.6
Hmong	170	1.4
Japanese	63	0.5
Other/Unknown	1,391	11.6
Black	607	5.1
White	716	6.0
Hispanic	221	1.8
Native American	16	0.1
Unknown	511	4.3
Primary language English	8,894	74.0
Health plan membership (months)
12–59	1,606	13.4
60–119	3,389	28.2
120+	7,021	58.4

CHB denotes chronic hepatitis B

^aAge as of December 31, 2010

^bIncludes Pacific Islanders