FIG. 2.

(A) Twelve samples with one or more complete nucleotide discordances had significantly lower mean plasma HIV-1 RNA levels than the 34 samples without a complete nucleotide mismatch (3.9 versus 4.9 log copies/ml; P < 0.001). Panel A appears to have less than 46 points because 34 of the samples had no complete mismatches and these overlap with one another along the x axis. (B)There was no statistically significant relationship between the number of partial nucleotide mismatches and plasma HIV-1 RNA levels in the 46 samples. Each panel has 46 points, one for each plasma sample. The position along the x axis is based on the HIV-1 RNA level of the plasma sample. The position along the y axis is the number of nucleotide mismatches between laboratories A and B upon testing of the plasma sample.