Association of Helicobacter pylori infection with colorectal polyps and malignancy in China

Table 4 The association of Helicobacter pylori-associated atrophic gastritis or intestinal metaplasia with colorectal polyps and colorectal cancer, compared with the control group

	H. pylori-associated atrophic gastritis [n (%)]	Adjusted OR (95%CI)	P value	H. pylori-associated intestinal metaplasia [n (%)]	Adjusted OR (95%CI)	P value
Control group	541 (22.90)	1		105 (4.45)	1
Colorectal polyp group	1355 (34.99)	5.42 (4.67-6.30)	< 0.01	347 (8.96)	5.88 (4.60-7.52)	< 0.01
CRC group	144 (47.37)	3.46 (2.63-4.55)	< 0.01	55 (18.09)	4.86 (3.22-7.34)	< 0.01

CRC: Colorectal cancer; H. pylori: Helicobacter pylori; CI: Confidence interval; OR: Odds ratio.