IL12B and inflammatory bowel disease: This is in agreement with the recent IBD meta-analyses [9], [10], which showed much stronger IBD association signals for IL23R than for IL12B. Similarly, smaller studies failed to show an association of IL12B SNPs with IBD or showed only weak associations with CD or UC [46], [47], [48] (see Supplemental Table S4 for an overview on published studies on IL12B in IBD).