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The Self-Care of Heart Failure Index version 7.2 : Further psychometric testing
Vellone, Ercole De Maria, Maddalena Iovino, Paolo Barbaranelli, Claudio Zeffiro, Valentina Pucciarelli, Gianluca Durante, Angela Alvaro, Rosaria Riegel, Barbara
Vellone, Ercole
De Maria, Maddalena
Iovino, Paolo
Barbaranelli, Claudio
Zeffiro, Valentina
Pucciarelli, Gianluca
Durante, Angela
Alvaro, Rosaria
Riegel, Barbara
Abstract
Clinicians and researchers need valid and reliable instruments to evaluate heart failure (HF) self-care. The Self-Care of Heart Failure Index (SCHFI) is a theoretically driven instrument developed for this purpose. The SCHFI measures self-care with three scales: self-care maintenance, measuring behaviors to maintain HF stability; symptom perception, measuring monitoring behaviors; and self-care management, assessing the response to symptoms. After the theory underpinning the SCHFI was updated, the instrument was updated to version 7.2 but it was only tested in the United States. In this study we tested the psychometric characteristics (structural and construct validity, internal consistency, and test–retest reliability) of the SCHFI v.7.2 in an Italian population of HF patients. We used a cross-sectional design to study 280 HF patients with additional data collected after 2 weeks for test–retest reliability. Adults with HF (mean age 75.6 (±10.8); 70.8% in New York Heart Association [NYHA] classes II and III) were enrolled from six centers across Italy. Confirmatory factor analysis showed supportive structural validity in the three SCHFI v.7.2 scales (CFI from 0.94 to 0.95; RMSEA from 0.05 to 0.07). Internal consistency reliability estimated with Cronbach's α and composite reliability ranged between .73 and .88; test–retest reliability ranged between 0.73 and 0.92. Construct validity was supported with significant correlations between the SCHFI v.7.2 scale scores and quality of life, brain natriuretic peptide levels and NYHA class. This study further supports the psychometric characteristics of the SCHFI v.7.2, illustrating that it can be used in clinical practice and research also in an Italian population.
Keywords
heart failure, psychometrics, reliability, self-care, validity
Date
2020
Type
Journal article
Journal
Research in Nursing and Health
Book
Volume
43
Issue
6
Page Range
640-650
Article Number
ACU Department
Mary MacKillop Institute for Health Research
Faculty of Health Sciences
Faculty of Health Sciences
Collections
Relation URI
Source URL
Event URL
Open Access Status
License
All rights reserved
File Access
Controlled