Table 2.

Eligibility criteria and method of ascertainment

	Criteria	Method
Primary care provider
Inclusion	Physician, nurse practitioner, or physician assistant	Administrative & Phone screen
	Working in one of the targeted primary care clinics	Administrative & Phone screen
	At least one half-day of primary care clinic per week	Administrative & Phone screen
	Patient panel size large enough to enroll 12–13 patients	Administrative & Phone screen
Patient participant
Inclusion	Assigned to one of the enrolled PCPs	Administrative & Phone screen
	At least one primary care appointment in the 18 months before enrollment	Administrative & Phone screen
	Upcoming PCP appointment with assigned PCP	Administrative & Phone screen
	Aged 40–64 years	Administrative & Phone screen
	No previous history of CRC (V10.05, V10.06, ICD-9153, 154), inflammatory bowel disease (555.0, 555.1, 555.2, 555.9, 556.0), or adenomatous polyps (indicated in pathology report)	Administrative & Phone screen
Exclusion	Endoscopy within the previous 3 years	Administrative & Phone screen
	Plans to relocate or leave the VA healthcare system in the next 12 months	Phone Screen
	More than 2 errors on a validated 6-item screener for cognitive impairment	Phone screen
	Non-English speaking	Phone screen
	No knowledge of FHH of first- and second-degree predecessor relatives, even if adopted	Phone screen
	Concurrent enrollment in a competing research study (related to colon cancer)	Phone screen