Approximately, 20 splicing mutations in 13 genes (ANKZF1, CD40LG, CTLA4, IL10RA, IL10RB, IL12RB1, NCF4, NOD2, SKIV2L, STXBP3, TTC37, TTC7A, and WAS) have been reported to be associated with IBD in children (Table 3). This evidence concerns the gene IL12RB1 and inflammatory bowel disease.