MKI67 and chronic kidney disease: MKI67 correlated negatively with the normal score (ρ = –0.29; P = 2.9 × 10–49) and most positively with the AKI2 score (ρ = 0.32; P = 1.1 × 10–61), weakly positively with the AKI1 score (ρ = 0.12; P = 5.8 × 10–9) and negatively with the mild CKD score (ρ = –0.18; P = 3.5 × 10–19), and did not correlate with the CKDAKI score (ρ = 0.003; P = 0.87).