Furthermore, the prevalence of the apoE4 allele was similar in the patients with cholesterol gallstones and in the control group (8.5% vs 7.6%, p = 0.46, OR = 0.88; 95% CI = 0.64-1.22).
Associations between the polymorphism of apolipoprotein E, which plays an important role in cholesterol metabolism and cholesterol gallstone formation, have been reported recently.