The Global Rating Scale (GRS) was created in 2004 as a quality improvement and assessment tool for the gastrointestinal endoscopy service. Gastrointestinal endoscopy is the direct visualisation of the gastrointestinal tract. Gastrointestinal endoscopy is used for diagnosis and treatment of gastroenterology disorders. It plays a major role detecting and treating gastrointestinal cancers and pre-cancers, particularly bowel cancer. 

The GRS is managed by the Joint Advisory Group for GI Endoscopy (JAG).  For further enquiries, please contact askgrs@rcplondon.ac.uk.  

The GRS assesses 12 key aspects of the experience of patients having an endoscopy. Each aspect (or item) is scored on a scale of D to A where D is a basic level and A is a very high level of achievement. The twelfth item: ‘ability to provide feedback to the service’ ensures that nothing important is missed by the scale and that a service constantly monitors (and responds to) patient feedback. For a more detailed explanation of the GRS and how it works please click on ‘what is the GRS?’

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