Fig 4. Receiver operating characteristics curves to evaluate the discriminative power of the combination of CD8⁺ T cell subsets in distinguishing TCMR from the NC or LTGS groups.

(A) CCR7⁺CD8⁺ T (B) CD57⁺CD28^nullCD8⁺ T (C) CD45RA⁺CCR7^-CD8⁺ T (D) The ratio between CCR7⁺CD8⁺ T vs CD28^nullCD57⁺CD8⁺ T (E) The ratio between CCR7⁺CD8⁺ T vs. CD45RA⁺CCR7^-CD8⁺ T (F) Combination of the ratio between CCR7⁺CD8⁺ T vs CD28^nullCD57⁺CD8⁺ T and the ratio between CCR7⁺CD8⁺ T vs CD45RA⁺CCR7^-CD8⁺ T. Abbreviations; LTGS, long-term graft survival; NC, Normal control; TCMR, T cell mediated rejection.