2.6. GSRS
abdominal pain, reflux, diarrhea, constipation
GI DISORDERS
The GSRS is a 15-item instrument designed to assess the symptoms associated with common GI disorders. It has 5 subscales (reflux, diarrhea, constipation, abdominal pain, and indigestion). Responses to the items range from 1 to 7, with higher scores representing more discomfort (1: No discomfort at all; 2: Slight discomfort; 3: Mild discomfort; 4: Moderate discomfort; 5: Moderately severe discomfort; 6: Severe discomfort; 7: Very severe discomfort). It has been used in multiple studies across multiple conditions and is well validated [