<qa>  What was the name of the group that received informed consent?Study design After informed consent was obtained, patients were divided in two groups: the control group received nurse counselling and the intervention group received computer assisted instruction CAI. Next, patients scored comfort How comfortable are you? and patient anxiety How anxious are youon a 5-point Likert scale. T1 After this, the CAI group had a contact with a trained endoscopy nurse for practical matters like bridging in anticoagulant therapy, insulin dosage calculation and scheduling of the colonoscopy. Next, patients were scheduled for their colonoscopies, maximum 6 weeks after the counselling session. 