Table 1.

Rates (per 1,000) of cancers and adenomas by age and colonoscopy in previous 10 years

	Cancer n = 159		Advanced Adenoma n = 468		Adenoma 6 - 10 mm n = 286		Adenoma ≤ 5 mm n = 507		No abnormality n = 6784
Age Group (years)	Cpy yes	Cpy no	Cpy yes	Cpy no	Cpy yes	Cpy no	Cpy yes	Cpy no	Cpy yes	Cpy no
≤50	1	6	19	29	20	18	38	19	922	928
50 - 59	4	31	35	74	33	33	60	63	867	800
60 - 69	11	48	54	93	34	39	84	60	817	760
≥70	17	74	78	109	57	53	94	90	754	674
Total	9	31	50	66	38	31	73	49	831	822

Cpy = colonoscopy in previous 10 years