Associations of Advance Directive Knowledge, Attitudes, and Barriers/Benefits With Preferences for Advance Treatment Directives Among Patients With Heart Failure and Their Caregivers

Abstract

Patients with heart failure (HF) have not been considered as major beneficiaries of advance directives (ADs). We analyzed factors affecting the preferences for the adoption of ADs by patients with HF and their caregivers. Seventy-one patient (mean age: 68 years)-caregiver (mean age: 55 years) dyads were enrolled during clinic visits for routine care at a single institution and completed questionnaires during in-person visits. Cohen's kappa coefficients and generalized estimating equation models were used to analyze the data. The agreement on dyadic perspectives for aggressive treatments was poor or fair, whereas agreement relative to hospice care was moderate (k = 0.42, 95% confidence interval = 0.087-0.754). Both patients and caregivers demonstrated poor knowledge of ADs and similar levels of perceived benefits and barriers to advance care planning. However, the caregivers had more positive attitudes toward ADs than patients. Patients and caregivers who were older and/or males had greater odds of preferring aggressive treatments and/or hospice care. Further, those with depressive symptoms had lower odds of preferring hospice care. The dyadic agreement was moderately high only for hospice care preferences. Both patients and caregivers demonstrated knowledge of shortfalls regarding ADs. Timely AD discussions could increase dyadic agreement and enhance informed and shared decision-making regarding medical care.