The ratio (median%) of CD4+ lymphocyte subsets from the parent cell population among HIV+HBV+HCV+PWID (dark gray), HIV−HBV+HCV+ PWID (medium gray), HIV−HBV−HCV+ PWID (light gray), and triple negative PWID (white). Panel (a) indicates CD4+, (b) CD4+ TCM, (c) CD4+ TTEMRA, (d) CD8+, (e) CD8+ TN, (f) CD8+ TCM, and (g) CD8+ TCM cells. Holm–Bonferroni corrected p < 0.05 was considered statistically significant and is presented on the figure. HBV, hepatitis B virus; HCV, hepatitis C virus; HIV, human immunodeficiency virus; PWID, persons who inject drugs.