Table 1.

Demographic characteristics of intervention and control arms

Characteristic	Intervention sites	Control sites
Practices
Type (n)
Family medicine	2	2
Pediatrics	8	8
Total	10	10
Location (n)
Inner city	2	1
Rural	1	1
Suburban	5	6
Urban	2	2
Patients
Pre-intervention (n)	43,292	38,306
Non-white, mean % (SD)	31.0 (32.8)	22.3 (18.1)
Health insurance, M % (SD)
Self or publicly insured	40.4 (25.4)	37.9 (27.6)
Commercial	59.6 (25.4)	62.1 (27.6)
Age group, M % (SD)
6–23 months	12.1 (3.7)	11.1 (2.4)
2–8 years	44.8 (8.4)	39.8 (6.4)
9–18 years	43.2 (11.8)	49.1 (8.1)
Female, M % (SD)	49.7 (1.2)	49.3 (2.3)