Table 4.
Details on selected supporter measures
| Construct | Source | Instrument(s) | Baseline | 6 mo. | 12 mo. |
|---|---|---|---|---|---|
| Behaviors and determinants | |||||
| Supporter self-efficacy for helping patient with diabetes mellitus care | Survey | Adapted Stanford Chronic Disease Self-Efficacy Scale [72] | X | X | X |
| Health and relationship outcomes | |||||
| Caregiver burden | Survey | Caregiver Strain Index [66] | X | X | |
| Supporter distress about patient’s diabetes | Survey | Adapted Problem Areas in Diabetes Scale [73] | X | X | X |
| Adapted Fear of Hypoglycemia - Worry Subscale [84] | X | X | |||
| Patient-supporter relationship quality | Survey | Relationship Rating Form - Respect Subscale [77] | X | X | |
| Potential moderators | |||||
| Depression and anxiety | Survey | Patient Health Questionnaire-4 [83] | X | X | |