CD4 and non-Hodgkin lymphoma: Compared with the healthy volunteers, the NHL patients demonstrated decreased percentages of CD3+ and CD3+CD4+ cells (median = 57.0 vs. 71.5 and 39.5 vs. 44.9, respectively; p < 0.001) and decreased percentages of CD3+CD8+ cells (median = 17.0 vs. 22.0; p = 0.027).