Hepatitis B virus infection and genotype in asymptomatic people from 10 ethnic groups in Yunnan, China

Table 2 Hepatitis B surface antigen-positive rates in the 10 ethnic groups in Yunnan Province

Ethnic group	Number	Age	Origin1	Gender		HBsAg
				Male n (%)	Female (%)	Positive	Rate n (%)
Han	165	16.01 ± 14.47	-	87 (52.7)	78 (47.3)	7	4.2
Dai	459	38.41 ± 18.57	S	159 (34.6)	300 (65.4)	43	9.42
Bulang	100	36.24 ± 18.11	S	54 (54.0)	46 (46.0)	7	7.0
Pumi	61	34.90 ± 18.44	S	33 (54.1)	28 (45.9)	15	24.62
Achang	347	30.19 ± 18.46	N	154 (44.4)	193 (55.6)	16	4.6
Mosuo	234	31.61 ± 18.14	N	101 (43.0)	133 (57.0)	15	6.42
Naxi	196	8.78 ± 18.32	N	100 (51.0)	96 (49.0)	2	1.0
Dulong	305	31.51 ± 18.66	N	143 (46.9)	162 (53.1)	10	3.3
Bai	401	32.78 ± 17.12	N	178 (44.4)	223 (55.6)	22	5.5
Lisu	316	18.24 ± 18.02	N	144 (45.6)	172 (54.4)	10	3.2
Total	2584	28.35 ± 18.66		1153 (44.6)	1431 (55.4)	147	5.7

¹Historical ethnic origin;

²Indicates those with higher than average values. N: From north China; S: From south China; -: Han has no specific origin; HBsAg: Hepatitis B surface antigen.