Table 3.

Structure Patients Lost before 2017 (OLGA Classification OLGA based on Serological Criteria)

Total of 627 persons-examined in 2010	No stomach corpus atrophy	Mild corpus atrophy	Moderate corpus atrophy	Severe corpus atrophy
No antrum atrophy	264	17	5	21
Mild antrum atrophy	64	0	0	0
Moderate antrum atrophy	97	3	0	0
Severe antrum atrophy	154	2	0	0