Table 1. Description of the Study Practices
Type of practicen (%)
    Private1 (14.3)
    Part of a hospital system or other health system3 (42.9)
    Community health center1 (14.3)
    County health department1 (14.3)
    Residency program1 (14.3)
Primary medical specialty representedn (%)
    Family medicine6 (85.7)
    Pediatrics1 (14.3)
Number of Providers (full-time equivalents)Mean (SD); Range
    Physicians3.9 (2.8); 1–8.75
    Nurse practitioner or physician assistants2.8 (2.3); 0.5–5.6
    Physicians-in-training (residents)5.2 (10.2); 0–27
Services providedn (%)
    Pediatric care7 (100)
    Obstetric care3 (42.9)
    Geriatric care5 (71.4)
Number of Patient Encounters Per YearMean (SD); Range
    Outpatient medical visits22,589 (11,258.6); 10,000–36,000
    Inpatient visits3,433 (2,528.6); 0–5,688
    Obstetric deliveries230 (122.4); 0–315
    Behavioral health visits2,584 (1,835.0); 0–4,637
    Nursing home visits1,077 (748.5); 0–2,000
    Home visits41.6 (74.6); 0–185
Predominant medical record system for office visitsn (%)
    Paper1 (14.3)
    Electronic6 (85.7)
Percentage of Annual Patient Visits, by Age CategoryMean (SD); Range
    < 18 years52 (44.0); 10–100
    18–64 years47 (31.2); 0–75
    ≥ 65 years16 (17.8); 0–50
Percentage of Annual Patient Visits, by Payer StatusMean (SD); Range
    Private insurance27 (23.4); 0–70
    HMO3 (8.0); 0–22
    Medicare26 (23.2); 0–60
    Medicaid22 (14.5); 0–45
    Self-pay11 (15.1); 0–45
    Charity11 (23.1); 0–63
Percentage of Annual Visits by Patient Race/EthnicityMean (SD); Range
    White88 (9.1); 75–95
    African American9 (6.2); 4–20
    American Indian0 (0.8); 0–2
    Asian1 (1.8); 0–5
    Other2 (3.3); 0–9
    Hispanic or Latino Ethnicity16 (18.8); 1–40
  • SD, standard deviation.