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.

Table 2 Rate of vaccination by sex and age in Koreans^b

Age (yrs)	Malea			Femalea			Total
	No. of respondents	No. of vaccinces	%	No. of respondents	No. of vaccinces	%	No. of respondents	No. of vaccinces	%
20-39	43	19	44.2	70	31	44.3	113	50	44.2
40-49	37	23	62.2	60	21	35.0	97	44	45.4
50-	152	44	28.9	194	42	21.6	346	86	24.9
Total	232	86	37.1	324	94	29.0	556	180	32.4

^aP < 0.05 among age groups, by χ² test; bKoreans: Koreans in Yangpung in Korea.

Table 3 Positive rates and infection rate of Hepatitis B virus by sex and ethnic groups^e

	Male			Female			Total
	No. of tested	Crude rate (%)	Age-adjusted rated (%)	No. of tested	Crude rate (%)	Age-adjusted rated (%)	No. of tested	Crude rate (%)	Age-adjusted rated (%)
HBsAg positive rateac
Korean-Chinese	279	14.0	14.8	262	8.8	8.8	541	11.5	12.0
Han-Chinese	98	10.2	9.4	163	7.4	6.0	261	8.4	7.2
Korean	146	2.7	6.1	230	4.8	3.0	376	4.0	4.1
Anti-HBc positive rateabc
Korean-Chinese	279	74.6	73.2	262	68.3	66.0	541	71.5	69.7
Han-Chinese	98	58.2	59.1	163	50.9	50.4	261	53.6	54.0
Korean	140	69.3	61.3	226	58.0	60.0	366	62.3	60.9
Anti-HBc positive rate
Korean-Chinese	279	62.4	61.1	262	56.5	54.0	541	59.5	57.6
Han-Chinese	98	46.9	48.4	163	49.1	51.7	261	48.3	49.2
Korean	146	62.3	69.1	230	55.7	58.6	376	58.2	62.5
HBV infection rateabc
Korean	140	81.4	85.3	226	70.4	74.0	366	74.6	78.6
Korean-Chinese	279	81.4	79.7	262	76.3	74.1	541	78.9	77.0
Han-Chinese	98	63.3	63.4	163	59.5	59.8	261	60.9	60.7

^aP < 0.05 among 3 ethnic groups in male, by χ² test;

^bP < 0.05 among 3 ethnic groups in female, by χ² test;

^cP < 0.05 among 3 ethnic groups in total, by χ² test;

^dAge-standardized rates (standard population; Helong in 1997 and Yangpyung in 1995); ^eKorean-Chinese: Koreans in Yanbian in China, Han-Chinese: Chinese in Yanbian in China, Koreans: Koreans in Yangpyung in Korea.

Table 4 Serological profiles of hepatitis B virus markers by sex and ethnic groups^a

Gender ethnic groups	Serological profiles* (%)								Total
	I	II	III	IV	V	VI	VII	VIII
HBsAg	-	-	-	-	+	+	+	+
Anti-HBc	-	-	+	+	-	-	+	+
Anti-HBs	-	+	-	+	-	+	-	+
Male Korean-Chinese	52 (18.6)	16 (5.8)	27 (9.7)	145 (52.0)	1 (0.4)	2 (0.7)	25 (9.0)	11 (3.9)	279 (100.0)
Han-Chinese	36 (36.7)	3 (3.1)	8 (8.2)	41 (41.8)	2 (2.0)	0 (0.0)	6 (6.1)	2 (2.0)	98 (100.0)
Koreans	26 (18.6)	17 (12.1)	22 (15.7)	71 (50.7)			4 (2.9)		140 (100.0)
Female Korean-Chinese	62 (23.7)	17 (6.5)	35 (13.4)	125 (47.7)	3 (1.1)	1 (0.4)	14 (5.3)	5 (1.9)	262 (100.0)
Han-Chinese	66 (40.5)	9 (5.5)	8 (4.9)	68 (41.7)	4 (2.5)	1 (0.6)	5 (3.1)	2 (1.2)	163 (100.0)
Koreans	67 (29.6)	28 (12.4)	21 (9.3)	99 (43.8)			11 (4.9)		226 (100.0)

^aKorean-Chinese: Koreans in Yanbian in China, Han-Chinese: Chinese in Yanbian in China, Koreans: Koreans in Yangpung in Korea.