TABLE 1

Patient Characteristics (N = 152 418)

CharacteristicResult
Health system, frequency (%)
 OCHIN (746 practices)139 639 (92)
 VCUHS (6 practices)12 779 (8)
Race and/or ethnicity, frequency (%)
 Asian American5121 (3)
 African American26 091 (17)
 Hispanic57 386 (38)
 Non-Hispanic white45 683 (30)
 Other2299 (2)
 Unknown15 838 (10)
Insurance, frequency (%)
 Private13 143 (9)
 Public117 974 (77)
 Uninsured21 230 (14)
 Unknown71 (0.1)
Sex, frequency (%)
 Female74 320 (49)
 Male78 098 (51)
Distance from the clinic, miles, mean (SD)63 (321)
Age at first visit, wk, mean (SD)116 (119)
  • Categorical variables are summarized with frequencies and percentages. Continuous variables are summarized with means and SDs. Patients from the following states were included in the data set: Alaska, California, Colorado, Georgia, Florida, Indiana, Massachusetts, Michigan, Minnesota, Montana, North Carolina, New Mexico, Nevada, Ohio, Oregon, Texas, Utah, Virginia, Washington, and Wisconsin.