Table 5.

Univariate and Multivariate Logistic Regression Analyses of the Predictors of Colonic and Stomach Neoplasia (Adenoma and Darcinoma)

	Variables	Univariate analysis		Multivariate analysis
		OR (95% CI)	P-value	Adjusted OR (95% CI)	P-value
Colonic neoplasia	Age ≥ 50 years	2.583 (2.430–2.746)	< 0.001	2.507 (2.338–2.689)	< 0.001
	Male sex	2.090 (1.954–2.235)	< 0.001	1.699 (1.540–1.875)	< 0.001
	Body mass index ≥ 25 kg/m2	1.575 (1.481–1.674)	< 0.001	1.325 (1.236–1.420)	< 0.001
	Smoker (past + current)	1.831 (1.714–1.955)	< 0.001	1.317 (1.206–1.438)	< 0.001
	Heavy drinker	2.122 (1.860–2.421)	< 0.001	1.540 (1.327–1.787)	< 0.001
	Atrophic or metaplastic gastritis	1.672 (1.574–1.777)	< 0.001	1.331 (1.241–1.427)	< 0.001
	K-BDI level ≥ 10	0.734 (0.636–0.848)	< 0.001
Stomach neoplasia	Age ≥ 50 years	12.626 (6.722–23.714)	< 0.001	9.633 (4.919–18.868)	< 0.001
	Smoker (past + current)	2.510 (1.539–4.094)	< 0.001	2.942 (1.759–4.919)	< 0.001
	Atrophic or metaplastic gastritis	10.667 (5.163–22.038)	< 0.001	6.611 (3.018–14.483)	< 0.001
	K-BDI level ≥ 10	2.711 (1.472–4.992)	0.001	4.543 (2.415–8.549)	< 0.001
	Male sex	2.246 (1.355–3.723)	0.002
	Heavy drinker	2.834 (1.462–5.490)	0.002

CI, confidence interval; OR, odds ratio; K-BDI, Korean version of the Beck’s Depression Inventory.

Univariate and multivariate logistic regression analyses were performed.

In colonic neoplasia, the following parameters were excluded from the analysis, because the P-values from the Chi-square test were more than 0.05; BEPSI-K level ≥ 2.4 (P = 0.402), nonsteroidal anti-inflammatory drugs (NSAID) (P = 0.863), past history of cancer (P = 0.171), past history of stomach or colon cancer (P = 0.147). In stomach neoplasia, the following parameters were excluded from the analysis, because the P-values from the Chi-square test were more than 0.05; BMI ≥ 25 (P = 0.587), BEPSI-K level ≥ 2.4 (P = 0.147), NSAID (P = 0.631), past history of cancer (P = 0.452), past history of stomach or colon cancer (P = 0.227).