FEN1 and gallstones: This association was not affected by adjusting other factors (age, sex and gallstone) via regression analysis (ORadjust = 1.74, 95% CI = 1.02–2.64 for the FEN1-69G > A GA genotypes; ORadjust = 2.31, 95% CI = 1.32–3.96 for the FEN1-69G > A GG genotypes).