Kaplan–Meier curves also illustrated that KLRB1 was a low-risk factor associated with PFI in ACC (p < 0.001), BRCA (p = 0.036), CESC (p = 0.017), CHOL (p = 0.022), HNSC (p = 0.008), LIHC (p = 0.029), MESO (p = 0.009), SKCM (p = 0.037), and UCEC (p = 0.011) (Figure S1D). Here, KLRB1 is linked to adrenal cortex carcinoma.