Kruskal-Wallis test indicated significant higher levels of 2 cytokines in HIV KS compared to HIV controls: (1) the platelet-derived growth factors (PDGF) AB-BB with (P = .04, Figure 5B) and (2) the granulocyte colony-stimulating factor (P = .04, Figure 5C). This evidence concerns the gene CSF3 and Kaposi's sarcoma.