Given that both the groups of hospitalized and abstinent patients had the diagnosis of alcohol dependence, we merged these two groups into one and we compared the genotype frequencies with those of the healthy controls, an association was observed for GIPR rs1800437 GC (OR = 1.77, 95% CI = 1.02–3.09, p = 0.043) and GC + CC genotypes (OR = 1.69, 95% CI = 1.01–2.84, p = 0.045), but it did not remain statistically significant after adjustment for age, education, smoking, and partnership. This evidence concerns the gene GIPR and alcohol dependence.