Table 1. Demographics of Observation and Survey Participants by Office Site
DemographicsTotalSite 1Site 2Site 3Site 4Site 5Site 6Site 7
Staff, n
    Clinicians (physicians and nurse practitioners)3123510146
    Nursing staff (nurses and medical assistants)261454129
    Other220343435
    Total7931014176920
Female sex (%)80679071711006790
Race (%)
    White6033506271835659
    African American3667503823174441
    Other46
Mean age, years (range)40 (23–82)42 (41–44)41 (25–62)44 (32–60)38 (25–60)55 (32–82)34 (23–52)36 (25–57)
Mean years in profession (range)12 (0.6–42)13 (3–20)12 (2–40)11 (1–30)9 (0.6–40)26 (6–42)12 (1–27)9 (0.5–30)