Table 4 Preventive services use self-efficacy subscales among different subgroups
Factors or self-efficacy subscales (Number of itemsa) | N | Mean (SD) | Median (Range, IQR) |
Self-efficacy for Exercise (4) | Â | Â | Â |
 By diagnosis of arthritis |  |  |  |
  Yes | 206 | 30.8 (7.9)**** | 32.0 (6–40, 10) |
  No | 27 | 36.4 (4.2) | 37.0 (24–40, 6) |
 By pre-program exercise routine |  |  |  |
  Never exercise | 28 | 26.9 (9.6)*** | 29.0 (6–40, 14.5) |
  Exercise sometimes | 131 | 30.9 (7.4) | 32.0 (8–40, 11) |
  Exercise regularly | 72 | 33.9 (6.6) | 36.0 (11–40, 9.5) |
Self-efficacy for Self-management of Chronic Disease (3) | Â | Â | Â |
 By self-reported hypertension |  |  |  |
  Yes | 165 | 25.7 (4.6)* | 27.0 (3–30, 7) |
  No | 77 | 27.1 (3.8) | 28.0 (12–30, 4) |
 By self-reported diabetes |  |  |  |
  Yes | 56 | 25.8 (4.5) | 27.5 (14–30, 7) |
  No | 186 | 26.2 (4.4) | 27.0 (3–30, 6) |
 By self-reported hypercholesterolemia |  |  |  |
  Yes | 136 | 25.5 (4.6)** | 26.5 (3–30, 7) |
  No | 99 | 27.1 (4.0) | 29.0 (12–30, 5) |
 By numbers of comorbidities |  |  |  |
  >3 | 111 | 26.0 (4.1) | 27.0 (14–30, 7) |
  ≤3 | 131 | 26.2 (4.6) | 27.0 (3–30, 6) |
Factors or Self-Efficacy Subscales (Number of itemsa) | N | Mean (SD) | Median (Range, IQR) |
Self-efficacy for Getting Vaccinations Regularly (2) | Â | Â | Â |
 By having a flu shot in the last year at baseline |  |  |  |
  Got a flu shot in the last year | 189 | 19.7 (1.3)**** | 20.0 (7–20, 0) |
  Did not get a flu shot in last year | 51 | 16.2 (6.0) | 20.0 (2–20, 7) |
 By having a pneumonia shot at baseline |  |  |  |
  Had a pneumonia shot previously | 185 | 19.4 (2.1)**** | 20.0 (2–20, 0) |
  Never had a pneumonia shot | 46 | 16.7 (5.8) | 20.0 (2–20, 4) |