NFKB1 and cancer: To further study the association between NF-κB-related genes and KIRC, we used the Kaplan–Meier “survival” software package to calculate the optimal cut-off value of the risk score, reclassified the cancer patient samples into low- and high-risk groups, and displayed the clinical data and genetic characteristics of the 11 genes from the two groups in the form of heat maps.