Table 5.

Probabilities of OC and CTC findings

	Size of largest polyp
Ages	None (%)	<6 mm (diminutive) (%)a	6–9 mm (small) (%)	10+ mm (large) (%)	All (%)
Male
50–54	48.4	36.9	8.6	6.1	100
55–59	44.4	38.0	10.3	7.3	100
60–64	38.7	42.1	10.6	8.6	100
65–69	41.0	37.6	11.8	9.6	100
70–74	40.3	38.7	11.3	9.7	100
75–79	39.3	38.4	12.0	10.3	100
80–84	44.0	33.4	11.6	11.0	100
Female
50–54	50.4	39.2	6.4	4.0	100
55–59	47.4	40.6	7.4	4.6	100
60–64	48.1	39.4	7.3	5.2	100
65–69	50.9	35.2	8.1	5.8	100
70–74	49.4	35.7	8.5	6.4	100
75–79	48.9	34.6	9.4	7.1	100
80–84	49.4	34.6	8.7	7.3	100

^aNot used for the CTC analysis other than for scenario 9; isolated diminutive polyps identified by CTC are not reported and as a finding has the same effect as no polyps

Source: Authors’ analysis of published literature and 2013 Medicare 5% Sample data. See Appendix in supplementary material