Cavg of TFV-DP and FTC-TP in PBMC. PBMC concentrations of TFV-DP and FTC-TP are shown for the overall study population, and among TW and TM. Shown in black are previously published values among cisgender participants from three separate studies.6,9,12,13 Unless otherwise labeled, values are shown as geometric mean (95% CI). Cavg, average concentrations; DBS, dried blood spots; FTC-TP, emtricitabine triphosphate; PBMC, peripheral blood mononuclear cells; TFV-DP, TFV-diphosphate.