JAG requires services to repeat 100% of endoscopies for gastric ulcers within 12 weeks (see the JAG summary guide to quality and safety indicators). The British Society of Gastroenterology (BSG) has a quality standard for repeating endoscopies for gastric ulcers at 6-8 weeks 90% of the time. JAG's standard is slightly relaxed to allow for patient issues that may impact these timeframes, and to ensure that the ulcer has healed before an endoscopy is repeated.
It is up to the service's clinical lead to decide which timeframe the service must work towards. JAG will accept either standard as long as the service provides a complete audit.