Table 2.

Reasons for early surveillance CT colonography or colonoscopy instead of the advised surveillance CT colonography at 3 years

	Number of patients
Surveillance CT colonography at 1.5 years
Preference directly after initial CT colonography at screening trial	2
Early colonoscopy
Preference directly after initial CT colonography at screening trial	2
Abdominal complaints	4
Worries about the presence of polyps	1
Refused to give information	1
Total	10