Table 3.

Multivariate analysis to evaluate the 5 background factors based on the presence of submucosal invasion of gastric cancer.

	Crude odds ratio (95% CI)	Adjusted odds ratio (95% CI)	P-value
Age	0.99 (0.95–1.03)	0.98 (0.94–1.03)	.55
Male sex	0.85 (0.43–1.70)	0.72 (0.34–1.50)	.38
Open type atrophy	1.68 (0.65–4.34)	2.31 (0.85–6.31)	.10
PMH of GC	0.57 (0.24–1.39)	0.65 (0.26–1.65)	.37
L10AE	2.21 (1.08–4.52)	2.43 (1.15–5.11)	.019

CI = confidence interval, GC = gastric cancer, L10AE = longer than 10 years after eradication, PMH = past medical history.