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Characteristics of Intervention and Control Site Pairs
| Clinical Site Intervention and Control Pairs | |
|---|---|
| N (% of all sites) | |
| Region | |
| Southwest | 3 (23%) |
| South | 1 (8%) |
| Northwest | 7 (54%) |
| East | 2 (15%) |
| Clinic/Practice type | |
| Nonprofit clinic | 5 (38%) |
| For-profit physician group | 6 (46%) |
| Veteran’s affairs facility | 2 (15%) |
