Gastric dysplasia may be an independent risk factor of an advanced colorectal neoplasm

Table 1 Baseline characteristics of gastric dysplasia and control group

	Gastric dysplasia (n = 133)	Control (n = 213)	P-value
Age (mean ± SD)	61.2 ± 9.7	49.6 ± 8.3	0.0005
Sex [M/F, (%)]	97/36 (73/37)	162/51 (76/24)	0.5200
H pylori			0.2610
(+) n = 204	73	131
(-) n = 142	60	82
Colorectal adenoma			0.5220
(+) n = 148	55	93
(-) n = 198	78	120
Advanced adenoma			0.0007
(+) n = 44	28	16
(-) n = 302	105	197

Advanced adenoma: Advanced colorectal adenoma.

Table 2 Baseline characteristics of advanced adenoma (+) and (-) group

	Advanced adenoma (+) (n = 44)	Advanced adenoma (-) (n = 302)	P-value
Age (mean ± SD)	60.8837 ± 8.55294	53.1419 ± 10.43410	0.0002
Sex [M/F n (%)]	38/6 (86/14)	221/81 (73/27)	0.0600
H pylori			0.1060
(+) n = 204	21	183
(-) n = 142	23	119

Table 3 Statistics of colorectal adenoma and advanced adenoma groups

	Colorectal adenoma			Advanced adenoma
	aOR	CI	P-value	aOR	CI	P-value
Age (old age)	1.337	0.872-2.049	0.0020	2.872	1.446-5.704	0.0002
Sex (female)	0.629	0.379-1.042	0.0800	0.431	0.176-1.057	0.0640
H pylori (positive)	1.037	0.672-1.599	0.9120	0.594	0.315-1.120	0.1390
G. dysplasia (presence)	0.910	0.587-1.411	0.7380	3.283	1.700-6.342	0.0004

aOR: Adjusted odds ratio; G. dysplasia: Gastric dysplasia.

Table 4 Multivariate analysis of colorectal adenoma and advanced adenoma groups

	Colorectal adenoma					Advanced colorectal adenoma
	B	SE	t	Sig	95% CI	B	SE	t	Sig	95% CI
Age	3.585	1.129	3.176	0.0020	1.365 to 5.805	7.770	1.648	4.714	0.0002	4.529 to 11.01
Sex	-0.085	0.047	-1.810	0.0710	-0.007 to 0.178	-0.132	0.070	1.888	0.0600	-0.269 to -0.006
H pylori	-0.009	0.054	-0.163	0.8710	-0.114 to 0.097	-0.129	0.079	1.623	0.1060	-0.285 to -0.027
G. dysplasia	0.022	0.053	0.421	0.6740	-0.082 to 0.127	0.289	0.077	3.741	0.0004	0.137 to 0.440