The purpose of the present study was to analyze the frequency of HLA-D
R and DQ antigens in Brazilian asthmatic children with skin-test and R
AST positivity to Dermatophagoides pteronyssinus. The comparison of HL
A-DR and DQ antigenic frequencies between patients (n = 30) and contro
ls disclosed a significantly higher HLA-DQ2 frequency in the patients
(60 % versus 34 %, p = 0.013; R.R. = 2.8).