Fig 3.

Correlation of PD-1 and BTLA expression on B lymphocytes with Ki-67 and CD95. (A and B) Correlations between percentages of total B cells (CD19⁺) that express PD-1 and percentages expressing Ki-67 (A) or CD95 (B). (C and D) Correlations between BTLA and Ki-67 (C) or CD95 (D) expression. Spearman's rank correlation coefficient (r) and level of significance (p) are indicated within each graph. Each point represents data from a single subject. Open diamonds, HC; closed triangles, AV; closed circles, VI.