. 2018 May 9;33(23):e166. doi: 10.3346/jkms.2018.33.e166

Table 4. The odds ratios according to the endoscopic examination intervals with the type of GC (EGC vs. AGC) as the dependent variable.

Endoscopic examination intervals, mon	aOR	95% CI	P value
< 24	2.458	1.656–3.648	< 0.001
≥ 24	1	1.656–3.648	< 0.001
< 36	3.022	2.189–4.170	< 0.001
≥ 36	1	2.189–4.170	< 0.001
Screened	3.144	2.225–4.442	< 0.001
Never been screened	1	2.225–4.442	< 0.001

Possible confounding variables (i.e., age, sex, family history of GC and histology of GC) at diagnosis are adjusted in this analysis.

GC = gastric cancer, EGC = early gastric cancer, AGC = advanced gastric cancer, aOR = adjusted odds ratio, CI = confidence interval.