Last, the genetic variants of IFT172 that encodes a subunit of the intraflagellar transport subcomplex IFT-B, which is necessary for ciliary assembly and maintenance, have been associated with ulcerative colitis and Crohn’s disease (73), but their associations with CRC risk, as detected in our study, have not been previously reported, warranting future replication studies. This evidence concerns the gene IFT172 and Crohn disease.