(a) Banff lesions severity according to low or high CD160+IL-21R+CD56dimCD16bright NK cell percentage (based on the 75th percentile = 22.5%) in the 71 kidney transplant recipients. Mann-Whitney test. ****P < 0.0001. (b) Death-censored allograft survival of the 71 patients stratified into 2 subgroups of CD160+IL-21R+CD56dimCD16bright NK cells (based on the 75th percentile = 22.5%). Kaplan-Meier curve of death-censored graft survival and log-rank test, cg, transplant glomerulopathy; ci + ct, interstitial fibrosis and tubular atrophy; cv, chronic vasculopathy; g + ptc, glomerulitis + peritubular capillaritis (microvascular inflammation); i + t, interstitial inflammation + tubulitis; v, arteritis.