Odds ratio (OR) including 95% confidence intervals (CI) for 5HT2C rs3813929 (effect of the T vs C alleles) and COMT rs4680 (recessive effect of the G allele, GG vs GA & AA) in relation to IGT and T2D compared to glucose-tolerant subjects before and after adjustment for fat-BMI (kg/m2). The gene discussed is COMT; the disease is type 2 diabetes mellitus.