Fig. 5

Scatterplots of global T scores by percent cortical area of CD68-expressing microglia for entire cognitively characterized HIV sample (a), the HIV-D subgroup (b), and the HIV-U subgroup (c). Correlations of microglial area and test performance were significant for the entire sample and the HIV-D subgroup, but not HIV-U (CD68 area log transformed prior to correlation; adjusted R2 for entire sample: 0.0887, p = 0.0002, for HIV-D: 0.1481, p = 0.0003, for HIV-U -0.0107, p = 0.5218)