Table 1

Baseline characteristics of practice sites and patients with type 2 diabetes by randomization group

Practice sitesAll sitesACGSTGP
n341321
Physician age: mean (SD) age (years)44.8 (7.7)43.3 (6.4)45.7 (8.4)0.3867
Gender: male27 (79.4)11 (84.6)16 (76.2)0.5549
Years in practice: mean (SD) (years)13.1 (7.9)11.3 (7.2)14.1 (8.3)0.3441
Type of practice0.4289
Primary care27 (79.5)10 (76.9)17 (81.0)
Multispecialty care6 (17.6)2 (15.4)4 (19.0)
Primary care/multispecialty care1 (2.9)1 (7.7)0 (0.0)
Number of type 2 diabetic patients: mean (SD)1,084 (1,483)1,250 (2,023)978 (1,065)0.6276
Primary location of practice0.3024
 Rural setting10 (29.4)2 (15.4)8 (38.1)
 Suburban17 (50.0)9 (69.2)8 (38.1)
 Urban6 (17.6)2 (15.4)4 (19.0)
 Urban and suburban1 (3.0)0 (0.0)1 (4.8)
PatientsAll patientsACGSTGP
n483227256
Patient age: mean (SD) age (years)55.8 (10.7)57.0 (11.2)54.8 (10.1)0.0197
Gender: male257 (53.2)122 (53.7)135 (52.7)0.8243
Ethnicity0.0004
 African American150 (31.1)72 (31.7)78 (30.5)
 Caucasian305 (63.1)152 (67.0)153 (59.8)
 Other28 (5.8)3 (1.3)25 (9.8)
Highest level of education0.1002
 No college253 (52.7)114 (50.9)139 (54.3)
 Some college98 (20.4)40 (17.9)58 (22.7)
 College graduate129 (26.9)70 (31.3)59 (23.0)
A1C: mean (SD) A1C (%)8.9 (1.2)8.9 (1.2)8.9 (1.2)0.8751
BMI: mean (SD) BMI (kg/m2)35.1 (7.3)35.1 (6.7)35.0 (7.8)0.8851
Diabetes duration: mean (SD) (years)7.6 (6.1)7.7 (6.1)7.5 (6.1)0.6547
  • Values are n (percentages) unless stated otherwise.