Association of gallbladder diseases with risk of gastrointestinal polyps

BMC Gastroenterology

Table 4 Risk of colorectal polyps with different locations and pathology according to the size and number of gallbladder polyps

Variables	Left-colon polyp vs polyp-free				Right-colon polyp vs polyp-free				Colorectal adenoma vs polyp-free
	OR (95%Cl)	P-value	Adjusted OR (95%Cl)^a	P-value	OR (95%Cl)	P-value	Adjusted OR (95%Cl)^a	P-value	OR (95%Cl)	P-value	Adjusted OR (95%Cl)^a	P-value
GB polyps
Size
No GB polyp	1		1		1		1		1		1
<0.5 cm	1.75 (1.01,3.04)	.048	1.53 (0.87,2.70)	.140	1.64 (0.71,3.75)	.246	1.44 (0.62,3.33)	.396	1.88 (1.13,3.13)	.015	1.58 (0.93,2.69)	.089
≥0.5 cm	2.09 (1.20,3.64)	.009	2.28 (1.28,4.05)	.005	2.13 (0.96,4.72)	.063	2.10 (0.93,4.72)	.073	1.81 (1.05,3.13)	.033	1.94 (1.10,3.42)	.023
Number
No GB polyp	1		1		1		1		1		1
Single	1.83 (1.11,3.02)	.019	1.61 (0.96,2.70)	.069	1.76 (0.84,3.70)	.136	1.53 (0.72,3.25)	.266	1.82 (1.13,2.92)	.013	1.56 (0.96,2.55)	.075
Multiple (≥2)	2.05 (1.09,3.84)	.026	2.37 (1.23,4.56)	.010	2.05 (0.83,5.09)	.121	2.13 (0.85,5.38)	.108	1.91 (1.04,3.50)	.037	2.10 (1.11,3.98)	.023

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