Association of coffee drinking with the CT-TT genotype of rs4998386 in the GRIN2A gene among controls.

Odds ratios (OR) and 95% confidence intervals (CI) were computed using logistic regression and adjusted for sex, age in quartiles, ever cigarette smoking, and dataset. ORs compare the odds of carrying the rs4998386-CT or TT genotypes (outcome) in coffee drinkers (exposure) to the odds of carrying the rs4998386-CT/TT genotypes in never coffee drinkers among controls (France, Denmark, Seattle-US, N = 2494; Rochester, N = 315; pooled analysis, N = 2809).Association of coffee drinking with the CT-TT genotype of rs4998386 in the GRIN2A gene among controls.