Table 1 Characteristics of the study sample
Characteristics |  | Study sample (n = 627) Mean (sd) or n (%) | Non response (n = 667) Mean (sd) or n (%) |
|---|---|---|---|
Age in years |  | 65.1 (sd = 11.6) | 63.5 (sd = 14.3) |
Gender | Male | 313 (49.9%) | 313 (46.9%) |
Level of education | Low | 199 (31.7%) | 220 (32.98%) |
| Â | Medium | 276 (44.0%) | 276 (41.38%) |
|  | High | 152 (24.2%) | 122 (18.29%) Missing = 49 (7.4%) |
Chronic condition | One | 306 (48.8%) | 321 (48.1%) |
|  | Two or more | 321 (51.2%) | 343 (51.4%) Missing = 3 (0.5%) |
Data collection | By post | 376 (60.9%) | Â |
| Â | Online | 248 (39.6%) | Â |
| Â | By telephone | 3 (0.5%) | Â |
General self-efficacy |  | 3.12 (sd = 0.6) |  |
Physical Health Composite Score |  | 42.81 (sd = 11.4) |  |
Willing to self-monitor | Â | 348 (55.5%) | Â |