AGA and cardiovascular disorder: Similarly, Anderson et al. reported significantly lower mortality from circulatory system disease in the anti-gliadin antibody (AGA) positive subgroup of celiac patients [Stardardized mortality ratio (SMR) 0.70, 95% CI 0.49–0.91] but not in the AGA positive/endomysium antibody (EMA)-negative subgroup [SMR 0.77, 95% CI 0.45–1.09] [53].