Operative link on gastritis assessment stage is an appropriate predictor of early gastric cancer

Table 2 Endoscopic gastric atrophy classification and OLGA/OLGIM stage in early gastric cancer and non- early gastric cancer patients

	EGC group	Non-EGC group	P value	OR (95%CI)
EGA classification1			0.005	2.26 (1.27-4.04)
None-to-mild	25	86
Moderate-to-severe	46	70
OLGA stage			< 0.001	3.76 (2.07-6.85)
0-II	34	121
III-IV	37	35
OLGIM stage			< 0.001	2.95 (1.60-5.45)
0-II	41	125
III-IV	30	31

¹None-to-mild EGA, C0-C2 types of EGA classification; Moderate-to-severe EGA, C3-O3 types of EGA classification. CI: Confidence interval; EGA: Endoscopic gastric atrophy; EGC: Early gastric cancer; OLGA: Operative Link for Gastritis Assessment; OLGIM: Operative Link on Intestinal Metaplasia Assessment; OR: Odds ratio.