Table 6.

P-values for differences in composition of various ions of gallstones shown in Table 5

Comparison	Ca2+	PO4−	Na+	K+	Mg2+	Cl−	Oxalate
CS vs. MS	0.0002	0.0001	0.1044	0.0016	0.1952	0.0080	0.0471
CS vs. PS	0.0001	0.0001	0.0001	0.0291	0.0005	0.0001	0.2140
MS vs. PS	0.0218	0.0248	0.0001	0.0001	0.0001	0.0001	0.2105

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