In adult patients undergoing colonoscopy, does retroflexion of the colonoscope in the right colon compared to standard forward viewing endoscopy increase the detection of adenomatous colonic polyps.

Interventions: Retroflexion of the colonoscope in the right colon which is standard practice for many endoscopists despite the paucity of data anaecdotally is thought to improve the detection of polyps behind folds that may not been seen on standard forward view withdrawal. The procedure duration for colonoscopy is approximately 20 minutes with retroflexion only adding an extra 1-2mins to the total procedure time and is standard practice for the endoscopists involved.
The process is undertaken in each patient once.
Primary outcome(s): Adenoma detection rate[At the time of endoscopy]
Study Design: Purpose: Diagnosis; Allocation: Non-randomised trial; Masking: Open (masking not used);Assignment: Single group;Type of endpoint: Safety/efficacy