Fig. 2

The subsets and phenotypes of lymphocytes in patients with DLBCL according to IPI scores. Patients with DLBCL were stratified into low- to low-mediate-risk (IPI scores 0–2) and mediate-high- to high-risk (IPI scores 3–5) groups. The absolute counts of CD3⁺ T, CD4⁺ T, CD8⁺ T cells and NK cells (A), the percentages of CD28⁺ cells in CD4⁺ and CD8⁺ T cells (B), the percentages of HLA-DR⁺ cells in CD3⁺ T and CD8⁺ T cells (C), the percentages of CD45RO⁺ and CD45RA⁺ cells in CD4⁺ T cells (D) and percentages of Tregs in lymphocytes are shown in different groups (mean ± SD). *p < 0.05, **p < 0.01, ***p < 0.001