Fig. 1

Flowchart of Dutch primary care patients with lower abdominal complaints for at least 2 weeks and referred for endoscopy, and their enrolment in the CEDAR study from July 2009 through January 2012. CEDAR Cost-Effectiveness of a Decision rule for Abdominal complaints in primary care; GP general practitioner; SCD significant colorectal disease. ¹ Non-SCD was established by other bowel tests for six patients (abdominal ultrasound in five and barium enema in one patient) and by the gastroenterologist based on bowel investigations performed before recruitment in the study for four patients. ² SCD was established by the gastroenterologist for one patient on the basis of bowel investigations performed before recruitment in the study