Box 1.

Summary of interview topic guides^a

Patient topic guide to explore patients’:	Sample questions
Understanding and experiences of living with HFpEF	It would be helpful if you could talk me through how you came to find out you had a heart condition How would you describe your heart condition?
Views and experiences of managing their heart condition	What things make managing your heart condition easier/harder? Can you tell me about any things that you do to look after your heart?
Perceptions on care	Can you tell me about how health professionals are involved in treating/managing your heart condition?
Clinician topic guide to explore clinicians’:	Sample questions
Understanding of their role and experience of supporting patients with HFpEF	Can you tell me about patients with HFpEF in your service/practice? Can you tell me about your role in the care of patients with HFpEF?
Perceptions on how this patient group is managed	Can you tell me about any challenges you have experienced (or anticipate) when providing services for this patient group? What are your experiences of interventions that seem to work in this patient population?

^aFull versions of topic guides are available from the authors on request. HFpEF = heart failure with preserved ejection fraction.