A comparative study on serologic profiles of virus hepatitis B

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.