Table 4.

P-values for differences in chemical composition of biliary calculi shown in Table 3

Groups	Cholesterol	Triglycerides	Bilirubin	Bile acids	Phospholipids
CS vs. MS	0.1472	0.3186	0.0001	0.0009	0.0080
CS vs. PS	0.0085	0.0263	0.0001	0.0001	0.0170
MS vs. PS	0.1983	0.0004	0.0001	0.8521	0.5101

Note: CS, cholesterol stones; MS, mixed stones; PS, pigment stones.