Table 1 Schedule of enrollment, interventions and assessments

Time point

−12 mo

0

0

6 mo

12 mo

16 mo

Enrollment

  Eligibility screen

X

  Informed consent

X

  Allocation

X

Intervention arm

  Provider-mediated phase

  Patient-mediated phase

Control arm

  Provider-mediated phase

  Patient-mediated phase

Assessments

  Baseline variables

X

  Providers: age, sex, duration in practice, practice load, remuneration plan, academic or community practice, rural or urban practice, solo or group practice

  Patients: age, sex, ethnicity, age at diagnosis, comorbidities, smoking status, educational attainment, annual income

Outcome variables

  Logs of all study processes to assess recruitment and retention

  Website use statistics

X

  Decisional conflict, diabetes distress, health-related quality of life, chronic illness care, intention to engage in IP-SDM

X

X

X

Qualitative interviews

X