European Heart Journal Advance Access originally published online on October 17, 2005
European Heart Journal 2006 27(4):434-440; doi:10.1093/eurheartj/ehi603
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Compliance in heart failure patients: the importance of knowledge and beliefs
1Department of Cardiology, University Medical Center Groningen, University of Groningen, PO Box 30.001, 9700 RB Groningen, The Netherlands
2College of Nursing, University of Kentucky, Lexington, KY, USA
3Trial Coordination Center, University Medical Center Groningen, University of Groningen, The Netherlands
4Department of Clinical Pharmacology, University Medical Center Groningen, University of Groningen, The Netherlands
Received 9 December 2004; revised 23 September 2005; accepted 29 September 2005; online publish-ahead-of-print 17 October 2005.
* Corresponding author. Tel: +31 50 361 4889; fax: +31 50 361 4391. E-mail address: m.h.l.van.der.wal{at}thorax.umcg.nl
See page 379 for the editorial comment on this article (doi:10.1093/eurheartj/ehi664)
Aims Non-compliance in patients with heart failure (HF) contributes to worsening HF symptoms and may lead to hospitalization. Several smaller studies have examined compliance in HF, but all were limited as they only studied either the individual components of compliance and its related factors or several aspects of compliance without studying the related factors. The aims of this study were to examine all dimensions of compliance and its related factors in one HF population.
Methods and results Data were collected in a cohort of 501 HF patients. Clinical and demographic data were assessed and patients completed questionnaires on compliance, beliefs, knowledge, and self-care behaviour. Overall compliance was 72% in this older HF population. Compliance with medication and appointment keeping was high (>90%). In contrast, compliance with diet (83%), fluid restriction (73%), exercise (39%), and weighing (35%) was markedly lower. Compliance was related to knowledge (OR=5.67; CI 2.87–11.19), beliefs (OR=1.78; CI 1.18–2.69), and depressive symptoms (OR=0.53; CI 0.35–0.78).
Conclusion Although some aspects of compliance had an acceptable level, compliance with weighing and exercise were low. In order to improve compliance, an increase of knowledge and a change of patient's beliefs by education and counselling are recommended. Extra attention should be paid to patients with depressive symptoms.
Key Words: Patient compliance • Adherence • Nursing • Heart failure
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