Table 8.

Base simulation summary statistics for the 2015 Medicare population

	Screening path
Statistic	OC	CTC
2015 total screenings (000s)	5501	9159
Male %	46.5%	45.8%
Female %	53.5%	54.2%
Screenings findings by size of largest polyp
None	46.3%	45.9%
<6 mm (diminutive)	37.3%	37.4%
6–9 mm (small)	9.1%	9.5%
10+ mm (large)	7.3%	7.2%
Any size	53.7%	54.1%
6+ mm	16.4%	16.7%
CTC with follow-up OC %	na	12.9%
Average cost per screening	$1036	$439
Average years to rescreen	8.0	4.9

na Not applicable

Source: Authors’ simulation. Assumes all Medicare enrollees have perfectly adhered to an OC or CTC screening path since age 50