What is the cost-effectiveness of endoscopy undertaken by nurses? A Multi-Institution NUrse Endoscopy Trial (MINuET)

INTERVENTION: Endoscopy undertaken by nurses versus doctors CONDITION: Digestive system diseases ; Digestive System ; Digestive system diseases PRIMARY OUTCOME: 1. Acceptability and anxiety scores, completeness of examination, incidence of technical complications, recording of clinical findings, and need for further investigation or procedure. ; 2. Incidence of clinical complications, quality of life (generic and disease‐specific) measured pre‐procedure and at one and 12 months post‐procedure. SECONDARY OUTCOME: Not provided at time of registration INCLUSION CRITERIA: Patients undergoing upper and lower gastrointestinal (GI) endoscopy.