Table 1.

Characteristics of the Primary Care Practices Studied

Characteristic	Participating Primary Care Practices
	Large Group	Small Private			Nonprofit/CHC			Teaching
	Practice A	Practice B	Practice C	Practice D	Practice E	Practice F	Practice G	Practice H
Community^*	Town	Town	Small city	Rural	Rural	Rural	Rural	Small city
Practice type	Private	Private	Private	Private	CHC	CHC	Nonprofit	Teaching
Medical specialties represented	FM, IM	IM	P	FM	FM, IM, P	FM, IM	FM, IM	FM
Provider FTEs
Physician	8.0	1.0	1.0	1.0	2.8	3.0	4.0	6.8
Nurse practitioner or physician assistant	6.0	1.5	0	1.0	2.4	3.0	4.75	2.7
Other staff FTE	36.0	7.5	3.0	7.0	24.0	22.0	36.0	30.5
Patient insurance (% of visits)
Medicare	34	47	0	40	28	29	29	21
Medicaid	9	18	58	18	26	11	28	20
Private insurance	45	32	40	37	27	44	28	56
Uninsured	12	3	2	2	19	16	13	2
Medical record type	EHR	Paper	Paper	EHR	Paper	EHR	EHR	EHR
Reporting program participation^†
PQRI	Yes	No	No	Yes	No	No	No	Yes
CCNC	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No
IPIP	No	Yes	Yes	No	No	Yes	No	No
Bridges to Excellence	Yes	No	No	No	No	No	Yes	No

* Community type (by population): rural, <25,000; town, 25,000–100,000; small city, 100,000–500,000.
† Physician Quality Reporting Initiative (PQRI) is the 2007 pilot program (Medicare); Community Care of North Carolina (CCNC) is sponsored by Medicaid; Improving Performance in Practice (IPIP) is a grant-funded demonstration project; and Bridges to Excellence is by Blue Cross/Blue Shield of North Carolina.
CHC, federally qualified community health center; IM, internal medicine; FM, family medicine; P, pediatrics; FTE, full-time equivalent; EHR, electronic health record.