Table 1. Characteristics of Participants and Comparison of Participants to the General Population of Adults Attending the Health System
CharacteristicsStudy ParticipantsGeneral Population
Clinicians (n = 20)
    Female sex13 (65.0)
    Age, mean years46.1 (7.2)
    Ethnicity
        Non-Hispanic white17 (85.0)
         Hispanic3 (15.0)
    Specialty
        Internal medicine5 (25.0)
        Family medicine10 (50.0)
        Nurse practitioner2 (10.0)
        Physician assistant3 (15.0)
Patients (n = 63)2011 Community Health Adults (n = 67,256)*
    Sociodemographic
        Female sex46 (73.0)41,990 (62.4)
        Age, mean years ± SD (range)50.0 ± 13.6 (19.7–73.4)42.4*
        Ethnicity
            African American20 (31.7)11,539 (17.2)
            Non-Hispanic white12 (19.0)19,885 (29.6)
            Hispanic25 (39.7)32,116 (47.8)
            American Indian3 (4.8)3716 (5.5)
            Multiethnic (non-Hispanic)3 (4.8)
        Insurance (n = 62)36 (58.1)27,319 (40.6)
            Public1 (1.6)8,006 (11.9)
            Private25 (40.3)31,928 (47.5)
            No insurance
    English-speaking (%)10070.9
    Physical/mental health
        Baseline PHQ-9 score (severity)17.5 ± 3.9 (moderately severe)
        Physical comorbidity categories, mean ± SD (range)2.3 ± 1.6 (0–7)
    Treatment factors
        Unique medications, mean ± SD (range)3.8 ± 2.6 (0–11)
        Previous antidepressant use27 (42.9)
    Antidepressant adherence
        Obtained initial fill56 (88.6)
        PDC, mean ± SD (range)45.2 ± 33.6 (0–100)
    Patient-clinician relationship
        Helping Alliance Questionnaire§95.1 ± 16.1 (41–109)
Change/sustain talk, mean ± SD (range)
    Mean change talk statements per encounter1.1 ± 1.0 (0–4)
    Mean sustain talk statements per encounter0.7 ± 1.2 (0–5)
  • Values are n (%) unless otherwise indicated.

  • * Mean age estimated from percentage of adults in age groups (19–34, 3549, 5060, and ≥65 years); overall adult data for the complete system excludes those aged 18 years.

  • Categorized as “Other.”

  • Physical comorbidities assessed with a count of up to 8 categories (arthritis, asthma, congestive heart failure, chronic obstructive pulmonary disease, coronary heart disease, diabetes, hypertension, and lower back pain).

  • § Helping Alliance Questionnaire assesses the patient's perception of participating in a collaborative relationship with the primary care clinician. A score of <89 is considered poor.

  • Of 63 patients, 48 (76.2%) voiced any change talk, whereas 22 (34.9%) made any sustain talk. The mean scores are for all 63 patients and were calculated including those with no change or sustain talk statements.

  • SD, standard deviation; PDC, proportion of days covered. PHQ-9, patient health questionnaire.