Table 2.

Odds ratios for stage IV development by logistic regression analysis

	Endoscopic screening			Radiographic screening
	Odds ratio	95% CI	p-value	Odds ratio	95% CI	p-value
Sex
Men	1			1
Women	0.867	0.459–1.635	0.659	0.228	0.068–0.770	0.017
Age	1.004	0.959–1.051	0.875	1.004	0.940–1.072	0.904
Screening history
Screening 1 year before	1			1
Screening 2 years before	1.139	0.132–9.835	0.906	2.816	0.909–8.717	0.073
Screening 3 years before	2.613	0.300–22.773	0.385	–
No screening history	9.575	3.739–24.517	< 0.001	2.164	0.942–4.971	0.069

^aScreening history was limited to the same method of which gastric cancer was diagnosed