Tu1107 ASSOCIATION BETWEEN ENDOSCOPIST BIOPSY RATE AND UPPER GASTROINTESTINAL NEOPLASIA DETECTION RATE DURING SCREENING ESOPHAGOGASTRODUODENOSCOPY; VALIDATION STUDY OF NEW CANDIDATE QUALITY INDICATOR USING ASIAN POPULATION

Esophagogastroduodenoscopy (EGD) has been used for secondary prevention of upper gastrointestinal neoplasia (UGIN), especially gastric cancer (GC) in Asian countries. In contrast to screening colonoscopy, there are few established quality indicators for EGD. Endoscopist biopsy rate (EBR) was recently reported to be promising candidate of quality indicator of EGD because of its possible association with disease detection rate. The aim of this study was to validate the association between EBR and UGIN (GC, esophageal cancer (EC), gastric adenoma (GA), duodenal adenoma (DA)) detection rate in Asian population where GC is prevalent.