Table 2.
Summary of study outcomes at each study time point.
| Variable | Measure | Data collection | ||||||
|
|
|
Study visit 1 (enrollment) | Study visit 2 at 1 week (T0) | Study visit 3 at 12 weeks (T1) | ||||
| Demographics | Age, gender, education level, income level, insurance type, ethnicity, employment, married, comorbidities | ✓ |
|
|
||||
| Clinical: weight, height, blood pressure | Weight: lb Height: ft, in Blood pressure: systolic/diastolic |
✓ |
|
|
||||
| Health history | Diabetes diagnosis, year of diagnosis, previous diabetes education | ✓ |
|
|
||||
| Diabetes management | Self-reported | ✓ |
|
|
||||
| Study aim 1: feasibility and acceptability | ||||||||
|
|
Acceptability | Objective online engagement metrics including number of reactions or comments per post, number of views per post, and Likert scale responses to polls |
|
|
✓ | |||
|
|
Feasibility | Attrition rates within online peer support group |
|
|
✓ | |||
|
|
Satisfaction and participant experiences | Semistructured interviewsa |
|
|
✓ | |||
| Study aim 2: clinical and behavioral outcomes | ||||||||
|
|
Clinical measurements | Time in rangeb | ✓ (PRO CGMc,d placement) | ✓ (PRO CGM download, personal CGM placement) | ✓ (personal CGM download) | |||
|
|
Glycemic levels | A1c, standard CGM/isCGM data reporting [10] | ✓ |
|
✓ | |||
|
|
Self-efficacy | Self-efficacy for diabetes [27] | ✓ |
|
✓ | |||
|
|
Online peer support community engagement | Diabetes Online Community Engagement Survey [28] | ✓ |
|
✓ | |||
|
|
Quality of life | WHO-5e [29] | ✓ |
|
✓ | |||
aSemistructred interviews available in Multimedia Appendix 2.
bAverage glucose level and number of minutes in 70 mg/dl to 180mg/dl in last 7 days of the study compared to average glucose level and number of minutes in 70mg/dl to 180mg/dl measured by initial blinded 7 days of baseline glucose data.
cPRO CGM: professional continuous glucose monitoring.
dData is blinded to participants.
eWHO-5: World Health Organization Five.