The OLGA system was used to evaluate atrophic gastritis in Japan, a country with high CG incidence. That evaluation found that 84% of the patients with GC were OLGA III or IV: OLGA IV was 56% and OLGA III was 28%.
En Japón, un país con alta incidencia de CG, la gastritis atrófica se evaluó mediante el sistema OLGA encontrándose de manera similar que la mayoría de pacientes con CG 84% tenía OLGA III-IV.