Tables 2 and 3 show the results of the discriminant analysis for the epithelium: a small set of genes (IL21, TNFSF14 with TNFRSF14, NFKB1 and SH2B3) discriminated most CeD patients (13/18; 72.2%) from controls, whereas only 2/18 controls (11.1%) were incorrectly classified as CeD patients. This evidence concerns the gene NFKB1 and cranioectodermal dysplasia.