The aim of this study was to examine long-term compliance with non-pharmacological treatment of patients with heart failure (HF) and its associated variables. Data of 648 hospitalized HF patients (mean age 69±12 years; 38% female; mean left ventricular ejection fraction [LVEF] 33±14%) were analyzed. Compliance was assessed by means of self-report at baseline and 1, 6, 12, and 18 months after discharge. Patients completed questionnaires on depressive symptoms, HF knowledge, and physical functioning at baseline. Logistic regression analyses were performed to examine independent associations with low long-term compliance. From baseline to 18 months at follow-up, long-term compliance with diet and fluid restriction ranged from 77%-91% and 72%-89% respectively. In contrast, compliance with daily weighing (34%-85%) and exercise (48%-64%) was lower. Patients who were in New York Heart Association (OR 3.55,), and less physical functioning (OR 0.99, were associated with low compliance with exercise. In conclusion, long-term compliance with exercise and daily weighing was lower than long-term compliance with advice on diet and fluid restriction. Although knowledge on HF and being offered educational support positively affected compliance with weighing and fluid restriction, these variables were not related to compliance with exercise. Therefore, new approaches to help HF patients stay physically active are needed.
Key-words:Adherence; Compliance; Heart Failure; Non-Pharmacological Treatment.
3Although it has been well established, most studies on determinants of compliance in patients with heart failure (HF) are cross-sectional, or focus solely on compliance with 1 specific non-pharmacological recommendation. Data on temporal trends in compliance with cardiovascular medication have been reported previously 1 , but little is known about long-term compliance with non-pharmacological treatment (i.e., sodium-restricted diet, fluid restriction, daily weighing, and exercise) and its determinants. Noncompliance with non-pharmacological treatment is related to adverse outcomes 2 and lower quality of life. 3 It is therefore vital to identify those patients who are at risk for noncompliance over a longer period of time, especially since studies have shown that noncompliance is a problem in the HF population. 4 It has been suggested that compliance with a specific recommendation might be a marker for compliance with other recommendations or lifestyle changes. 5 Unfortunately, direct comparisons of compliance with different recommendations in the same study population are not available. The present study aims to address this gap by examining long-term compliance with nonpharmacological recommendations and by assessing variables associated with long-term compliance.
MethodsThe study employed a descriptive, prospective design and used data from the COACH (Coordinating study evaluating Outcomes of Advising and Counseling in Heart failure) study.COACH was a randomized, multi-center, controlled study in which 1023 HF patient...