Associations of estimated haplotypes of HLA class II genes harboring.(A) DPB1 alleles susceptible to chronic hepatitis B infection, and (B) DPB1 alleles protective against chronic hepatitis B infection. Estimated haplotypes, whose frequencies were over 1% (A) in both of two groups, and (B) in either of two groups (i.e. HBV patients and healthy controls), are depicted with P values and OR. P values were calculated using Pearson's chi-square test in the presence vs. the absence of each haplotype. HLA alleles that are significantly associated with CHB infection in single point analysis are depicted in bold red (susceptible) and bold blue (protective).
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