Figure 2.

(a) Percentages of tumor-infiltrating mononuclear cells expressing programmed death-ligand 1 (P = 0.2195) in the in situ group and invasive group. (b) Percentages of tumor-infiltrating mononuclear cells expressing programmed death-1 (P = 0.7945) in the in situ group and invasive group. (c) Percentages of tumor-infiltrating mononuclear cells expressing programmed death-ligand 1 (P = 0.9613) in males and females. (d) Percentages of tumor-infiltrating mononuclear cells expressing programmed death-ligand 1 (P = 0.8405) in males and females. (e) Percentages of tumor-infiltrating mononuclear cells expressing programmed death-ligand 1 (P = 0.7232) in the group of patients aged 75 years or younger and the group of patients older than 75 years of age. (f) Percentages of tumor-infiltrating mononuclear cells expressing programmed death-ligand 1 (P = 0.5825) in the group of patients aged 75 years or younger and the group of patients older than 75 years of age; error bar shows the standard error of the mean. P < 0.05 was statistically significant