Table 1.

Age and sex at colonoscopy

Finding at colonoscopy	n	Male	Female	Median age (range)
Cancer	38	18 (1.1%)	20 (0.8%)	61 (38–82)
Adenoma	397	200 (12.4%)	197 (8.3%)	57 (18–86)
Neither	3,547	1,401 (86.5%)	2,146 (90.8%)	44 (16–90)
Total	3,982	1,619	2,363	51 (16–90)

Note: Two further cancers were only found after enquiry at the UK cancer registers.