Low prevalence of human leukocyte antigen-B*5701 in HIV-1-infected Chinese subjects: a prospective epidemiological investigation

Table 2 Prevalence of human leukocyte antigen (HLA)-B*5701 by birthplace

Birthplace	N	HLA-B*5701 status			Positive HLA-B*5701 status		P value
Birthplace	N	Positive	Negative	Undetermined	%	95% exact C I (%)	P value
Henan	610	5	588	17	0.84	0.28–1.96	0.999
Yunnan	483	4	467	12	0.85	0.23–2.15
Shanxi	365	3	352	10	0.85	0.18–2.45
Guangdong	355	3	341	11	0.87	0.18–2.52
Hebei	296	2	288	6	0.69	0.08–2.47
Beijing	190	2	184	4	1.08	0.13–3.81
Other provinces	701	6	677	18	0.88	0.32–1.90

N = number of enrolled subjects; % = positive cases/number of subjects with available results × 100; 95% CI = 95% lower and upper confidence limits.

ISSN: 1742-6405