CD4 and infection: Glycosylation in V1V2 was increased in those with stage 3 (β = 0.96, p = 0.002), but not stage 2 or 4 compared to stage 1 infection, and was decreased in those with CD4 counts <200 cells/ml (β = −0.63, p = 0.04 compared to CD4 counts >500).