Table 1 Comparison of Intervention and Comparison Groups’ Characteristics at Baseline and Follow-up

Number of patient visits per full-time employee in 6-month period

501 [333;511]

443 [301;528]

450 [301;528]

0.20

918 [631;1114]

841 [611;1000]

841 [611;1114]

0.42

 Medicaid patients (%)

71 [59; 74]

64 [55; 81]

68 [55; 81]

0.75

72 [60; 74]

65 [56; 81]

68 [56; 81]

0.94

 Medicare patients (%)

8 [4; 10]

13 [9; 17]

10 [4; 17]

0.01

8 [5; 10]

12 [8; 15]

9 [5; 15]

0.02

 Private insurance patients (%)

10 [9; 12]

12 [7; 20]

11 [7; 20]

0.42

11 [8; 12]

12 [7; 18]

11 [7; 18]

0.26

 Uninsured patients (%)

9 [3; 23]

6 [2; 18]

6 [2; 23]

0.26

9 [3; 22]

6 [2; 16]

7 [2; 22]

0.29

 White patients (%)

28 [13; 66]

41 [27; 65]

32 [13; 66]

0.34

27 [13; 64]

38 [25; 63]

31 [13; 64]

0.38

 Black patients (%)

8 [7; 20]

15 [2; 22]

12 [2; 22]

0.52

8 [5; 19]

12 [2; 18]

10 [2; 19]

0.87

 Hispanic patients (%)

49 [12; 64]

34 [18; 58]

43 [12; 64]

0.26

50 [13; 64]

34 [18; 59]

43 [13; 64]

0.30

 Other race patients (%)

4 [2; 5]

5 [4; 12]

4 [2; 12]

0.05

4 [2; 7]

6 [3; 22]

4 [2; 22]

0.20

 Race unknown patients (%)

4 [2; 10]

2 [1; 11]

4 [1; 11]

0.19

5 [3; 10]

4 [2; 12]

4 [2; 12]

0.51

Patients eligible for care coordination^

330 [114;1396]

745 [162;1538]

410 [114;1538]

0.63

.

.

.

.

Productivity indicator

1.21 [1.04;1.37]

1.00 [0.96;1.19]

1.12 [0.96;1.37]

0.06

1.23 [1.02;1.28]

1.05 [0.81;1.16]

1.06 [0.81;1.28]

0.07

Supervisor support for staff, indicative of work climate (staff reported, 1–4 scale)~

3.60 [2.96; 3.80]

3.67 [3.49; 3.84]

3.66 [2.96; 3.84]

0.57

3.37 [3.23; 3.88]

3.57 [3.23; 3.93]

3.56 [3.23;3.93]

0.57