Fig. 3

Correlograms of the correlations among 19 CSF cytokine concentrations for the three groups. Blue and red color represent a positive and negative association between the concentrations of the two CSF cytokine that meet at that cell, respectively. The darker and more saturated the color, the greater the magnitude of the correlation. a. In HIV + CM+ group, there were 32 significant correlations among the levels of various cytokines. The median correlation coefficient was 0.263. b. In HIV + CM- group, there were 29 correlations among the levels of various cytokines. The median correlation coefficient was 0.551. c. In HIV-CM- group, there were 22 correlations among the levels of various cytokines. The median correlation coefficient was 0.066