Helicobacter pylori-Induced Chronic Gastritis and Assessing Risks for Gastric Cancer

Table 1

The OLGA staging frame. Atrophy is scored as the percentage of atrophic glands and scored on a four-tiered scale. No atrophy (0%) = score 0; mild atrophy (1–30%) = score 1; moderate atrophy (31–60%) = score 2; 9 severe atrophy (>60%) = score 3. These scores (0–3) are used in the OLGA staging assessment in each 10 compartment. Taken from Rugge et al., Dig Liver Dis 2011; 43:S373-84 with permission of Elsevier.

		Corpus
	Atrophy score	No atrophy	Mild atrophy	Moderate atrophy	Severe atrophy
		(score 0)	(score 1)	(score 2)	(score 3)
Antrum	No atrophy (score 0); (including incisura angularis)	Stage 0	Stage I	Stage II	Stage II
	Mild atrophy (score 1); (including incisura angularis)	Stage I	Stage I	Stage II	Stage III
	Moderate atrophy (score 2); (including incisura angularis)	Stage II	Stage II	Stage III	Stage IV
	Severe atrophy (score 3); (including incisura angularis)	Stage III	Stage III	Stage IV	Stage IV