The body of knowledge on compliance in heart failure patients: we are not there yet.
BACKGROUND
Noncompliance with diet and fluid restriction is a problem in patients with heart failure (HF). In recent studies, a relationship between compliance with sodium and fluid restriction and knowledge and beliefs regarding compliance was found. In these studies, however, compliance was primarily measured by interview or questionnaire.


OBJECTIVE
To examine the relationship between compliance with sodium and fluid restriction measured with a nutrition diary and knowledge, beliefs, and other relevant variables in HF patients.


METHODS
Eighty-four HF patients completed a nutrition diary for 3 days. Patients also completed questionnaires on knowledge, beliefs regarding compliance, and depressive symptoms. Differences in relevant variables between compliant and noncompliant patients were assessed.


RESULTS
Compliance with sodium and fluid restriction was 79% and 72%. Although not statistically significant, a higher percentage of patients were compliant with the less stringent restrictions compared with the more stringent restrictions, and in addition, more noncompliant patients perceived difficulty following the regimen compared with their compliant counterparts. In contrast with other studies, no significant differences in knowledge, beliefs, and relevant demographic and clinical variables were found between compliant and noncompliant patients.


CONCLUSIONS
Perceived difficulty and the amount of the prescribed restriction seem to be relevant concepts that play a role in compliance with sodium and fluid restriction in HF and need to be explored in future research.
Department of Cardiology, University Medical Centre Groningen, University of Groningen, the Netherlands. m.m.w.nieuwenhuis@thorax.umcg.nl
Maurice M W
MM
Nieuwenhuis
Martje H L
MH
van der Wal
Tiny
T
Jaarsma
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D004326:Drinking; D005260:Female; D007722:Health Knowledge, Attitudes, Practice; D006333:Heart Failure / Q000523:psychology / Q000628:therapy*; D006801:Humans; D008297:Male; D008499:Medical Records; D008875:Middle Aged; D010349:Patient Compliance; D010353:Patient Education as Topic; D012982:Sodium, Dietary / Q000008:administration & dosage
D012982:Sodium, Dietary