A comparative study on serologic profiles of virus hepatitis B

Table 1 Characteristics of subject by ethnic groups^d

Ethnic groups	Age (years)	Gender		Total
		Male	Female
Korean-Chinesebc	20-39	103	117	220
	40-49	89	77	166
	50-	87	68	155
Total	279	262	541
Han-Chineseabc	20-39	42	103	145
	40-49	30	44	74
	50-	26	16	42
Total	98	163	261
Koreansab	20-39	43	70	113
	40-49	37	60	97
	50-	152	194	346
Total	232	324	556

^aP < 0.05 between sex, by χ² test;

^bP < 0.05 among age groups, by χ² test;

^cP < 0.05 among age groups by sex, by χ² test; ^dKoreans-Chinese: Koreans in Yanbian in China, Han-Chinese: Chinese in Yanbian in China, Koreans: Koreans in Yangpyung in Korea.