IL2RA and type 1 diabetes mellitus: For anorexia nervosa, per one-unit increase in genetically predicted log odds of T1D as measured by the IL2RA cis instrument, there was a 12% decrease in odds using the secondary weighted median method only (OR = 0.88; 95% CI = 0.81–0.96; P = 0.003; adjusted P = 0.012).