Appendix Table A1. Semistructured Interview Guide

Domain	Question
Physical aspects of care	Thinking about your HF, which symptoms most affect your quality of life?
Psychological aspects of care	Many people living with HF say they experience depression, sadness, or anxiety. I am curious about your experiences with depression or anxiety since you were diagnosed with HF. Have you had any feelings of sadness or depression? What about feelings of anxiety?
Social aspects of care	How do you feel that your HF has impacted your relationships with your loved ones?
Spiritual aspects of care	What role does spirituality play in your life? How do your spiritual practices impact how you deal with having HF?
Ethical and legal aspects of care (i.e., advance care planning)	Do you have a cardiac device, like a defibrillator, or a pump? What kind of discussions have you and your cardiologist had about that device if your HF gets worse?
Outcomes that matter to patients with HF	What are you hoping to get out of your health care regarding HF?
Perceptions of supportive care	How familiar are you with the term “supportive care”? Can you please tell me what you know, or what you have heard about it?
Perceptions of PC	Do you think there will come a point in the progression of your HF where you would like to see a PC specialist? What would that/those points be?
Closing	Given everything we have talked about today, what does/would high-quality HF care look like to you?

HF, heart failure; PC, palliative care.