Scoring system to improve cost effectiveness of open access endoscopy.

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Abstract
The introduction of an open access general practitioner endoscopy service may result in many unnecessary examinations being performed. In an attempt to prevent this, 235 patients attending for endoscopy were interviewed and the results analysed to determine which factors best discriminated between those with major disease (ulcers, cancers, oesophageal strictures; n = 48) and those without (n = 187). The six characteristics which best discriminated between the two groups were increasing age, history of vomiting, male sex, smoking, and a past history of peptic ulcer or hiatus hernia. With the use of these six features a scoring system was devised, designed to give an indication of the likelihood of finding such disease in an individual patient. This was assessed prospectively in a further 356 patients. The results showed that by utilising this scoring system it would be possible to reduce the number of examinations performed by 30% yet still detect 98% of serious disease. If confirmed in further prospective studies, this scoring system (or a modification) could more accurately assess individual priority for endoscopy and enable optimum use to be made of limited resources.