FIG. 4.
Correlation between steady-state viral load and absolute CD4 count and HLA frequency. Panels A and B show the correlation of viral load (A) and CD4 count (B) with the total combined HLA frequency of each individual in the cohort, that is, the sum of the frequencies of each of the individual's HLA class I alleles. The Spearman's rank correlation coefficient, r, and the linear regression r2 values are given with their corresponding P values. Panels C to H show the correlation of the combined frequencies of the HLA-B (C and D), HLA-C (E and F), and HLA-A (G and H) alleles with viral load and CD4 count.