| | Unadjusted | Age moderated | Adjusted |
| | Patient-centered interaction | 1.76** | 1.38* | 1.27 | | Patient age over 65 | | 0.47* | 0.76 | | Patient-centered × age over 65 | | 2.02* | 1.41 | | Patient characteristics | | | | | Gender—male | | | 0.71 | | Race—white | | | 1.69† | | Education—less than high school | | | 0.24* | | Education—high school degree | | | 0.65† | | Education—some college | | | 0.68 | | Education—college degree | | | 1.33 | | Income—less than $20,000 | | | 1.13 | | Income—$20–$29,999 | | | 0.89 | | Income—$30,000–$39,999 | | | 0.97 | | Income—$40,000–$49,999 | | | 1.12 | | SF12—physical health | | | 0.98 | | SF12—mental health | | | 1.06** | | Physician characteristics | | | | | Male | | | 0.61† | | White | | | 1.46† | | Years of practice | | | 0.99 | | Encounter characteristics | | | | | First visit | | | 0.50† | | Number of visits | | | 1.12 |
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