sHLA-G plasma levels correlate with IL-10 plasma levels, percentage of CD3⁺CD4^low and CD3⁺CD8^low T cells, and graft survival in patients who underwent transplantation. (A,B) Kaplan-Meier estimated graft survival without acute (A) or without acute and chronic (B) rejection among the 3 populations that received a transplant: KT, LT, and LKT. Survival differences are provided with log-rank test. (C-G) Correlation and significance between IL-10 and CD3⁺CD4^low (C), and CD3⁺CD8^low (D); and between sHLA-G plasma levels and CD3⁺CD4^low (E), and CD3⁺CD8^low (F) and IL-10 (G) are shown using ANOVA test and linear regression analyses. Correlation coefficients and P values are shown for each analysis.