GIPR and alcohol drinking: However, GIPR rs1800437 GC + CC and GC genotypes were significantly more frequent in hospitalized alcohol-dependent patients than in healthy controls (OR = 2.13, 95% CI = 1.17–3.87, p = 0.013 and OR = 2.21, 95% CI = 1.16–4.19, p = 0.015, respectively).