NFKB1 and neoplasm: The “ING4/NF-κB gene score” of each tumor was calculated by first either assigning 0 for each NF-κB-target gene if the expression level was equal to or lower than the median expression of the gene within the dataset (no activation) or assigning +1 point for each gene if the expression level was greater than the median expression of the gene within the dataset (activation), followed by adding the points of a given set of genes, in this case, 25 genes.