CTLA4 and celiac disease: Analyses of time to detection of tTGA identified 29 SNPs in 2 regions previously associated with celiac disease (CTLA4, P = 1.3x10−6, HR = 0.76 and LPP, P = 2.8x10−5, HR = .80) and 6 SNPs in 5 regions not previously associated with celiac disease (P<10−4); non-HLA genes are therefore involved in development of tTGA.