Table 5 Internal consistency of the PCES and its correlation coefficient with the global item construct
Subscales | Number of items | Cronbach’s alpha | Split-half reliability | r (95% CI) |
|---|---|---|---|---|
Subscale 1:  Self-management | 3 | 0.709 | 0.624 | 0.632 (0.526, 0.719) |
Subscale 2:  Social support | 5 | 0.881 | 0.860 | 0.766 (0.684, 0.830) |
Subscale 3:  Facility- and community-based care | 22 | 0.980 | 0.952 | 0.915 (0.883, 0.939) |
Total | 30 | 0.979 | 0.941 | 0.909 (0.874, 0.936) |