TABLE 2

Demographic Characteristics of the PPOC Practices Included in Analyses

CharacteristicLC1LC2Nonparticipants
No. of practices242140
Practice size, n (%)
 Small (1–2 providers)8 (33.3)11 (52.4)25 (62.5)
 Medium (3–5 providers)7 (29.2)5 (23.8)9 (22.5)
 Large (>5 providers)9 (37.5)5 (23.8)6 (15.0)
Practice region, n (%)
 Metro-Boston14 (58.3)10 (47.6)22 (55.0)
 North2 (8.3)4 (19.0)10 (25.0)
 South2 (8.3)1 (4.8)2 (5.0)
 South Coast1 (4.2)4 (19.0)5 (12.5)
 West5 (20.8)2 (9.5)1 (2.5)