Table 2 Interview guide

1.

Have you ever managed a diabetic patient with ASCVD and/ or CKD before? Could you please share your experience with me?

2.

Could you please tell me what you know about SGLT2 I? (Knowledge)

3.

What do you feel is your role in prescribing SGLT2 I? (Professional role and identity)

- Prompt: As a family doctor, do you feel it is appropriate for you to prescribe SGLT2 I?

- Follow up question: If you are to prescribe SGLT2 I to a patient, how confident or difficult would you feel? Can you tell me more? (Beliefs about capabilities)

-Follow up question: In your opinion, what skills do you need to determine whether to prescribe SGLT2 I to a patient? (Skill)

4.

What factors may influence your decision on prescribing an SGLT2 I for a diabetic patient with ASCVD/CKD? (Memory) - Prompt: How to balance risks and benefits? (Beliefs about consequences)

- Follow up question: Do you think you would prescribe SGLT2 I to a diabetic patient with established ASCVD/CKD? (Intentions)

- Follow up question: Do you have any goals when prescribing SGLT2 I to diabetic patients with established ASCVD/CKD? (Goals)

- Follow up question: Overall, how optimistic are you about using SGLT2 I in improving the prognosis of ASCVD and/or CKD? (Optimism)

- Follow up question: Can you think of any situations that you would be concerned about prescribing SGLT2 I to a patient? (Emotion)

5.

What environmental factors would affect your prescription of SGLT2 I?

Prompts:

Are there clear guidelines?(resources)

Any influence of Colleagues’ feedbacks / Supervisors’ feedbacks / Patients’ feedbacks? (Social Influences)

How about the consultation time? (Environmental context)

Is there any monitoring or feedback from the clinic on the use of SGLT2 I? (Reinforcement)

6.

Do you have any suggestions to improve the prescription of SGLT2 I? (Regulation)