FIG. 2.

Plasma levels of neopterin and myeloperoxidase (MPO) in HIV-infected and uninfected adolescents. Levels of neopterin (A) (values shown on the y-axis in ng/ml) and MPO (B) levels on the y-axis shown in ng/ml were compared in untreated HIV-infected (HIV⁺ closed circles), HIV-infected on treatment (HIV⁺ ART⁺ closed triangles), and HIV-uninfected (HIV⁻ open circles) adolescents at baseline and after 18 months on study. Significant p values among groups are shown. Comparisons were performed using a Kruskal–Wallis statistic with Dunn's multiple comparison test.