Table 3.
Biliary stone cases include gallstone and bile duct stones. Biliary stone cases compared with controls without biliary stones (n=586)
Gallbadder cancer cases compared with population controls who had a gallbladder (n=730)
Bile duct and ampulla of Vater cancer cases compared to all population controls (n=779)
Adjusted for age
Test of trend for the number of copies of the variant allele (0,1,2);
Pearson chi-square for absence or presence of the variant allele if variant genotype has n < 5
Note: Total number of subjects per SNP may vary because of missing values