Journal Article

Validity and reliability of the left ventricular assist device self-care behaviour scale

Melnikov, Semyon, Casida, Jesus, Jaarsma, Tiny, Strömberg, Anna, Lee, Christopher S., Kato, Naoko P., Denfeld, Quin E., Ben-Gal, Tuvia

2023

Overview

Adequate self-care behaviour is essential for patients with a left ventricular assist device (LVAD) to prevent complications, prolong life, and optimise quality of life. However, there were no valid and reliable measurements available to assess self-care behaviour among patients with LVAD. We have previously developed the 33-item LVAD self-care behaviour scale. To evaluate psychometric properties of the 33-item LVAD self-care behaviour scale. Data on 127 patients with a LVAD in Israel, Japan, and the USA were analysed (mean age 51±14.3, 81% male). Exploratory factor analysis extracted three factors, and 13 items were excluded from the scale. Internal consistency assessed by Cronbach's alpha was acceptable for the total scale (α = 0.80) and the three subscales: Factor 1: Monitoring (α = 0.81), Factor 2: Heart failure self-care (α = 0.67), and Factor 3: LVAD self-care (α = 0.63). The 20-item version of the LVAD self-care behaviour scale had sufficient convergent validity with another scale that assessed self-care related to the driveline of LVAD (r = 0.47, p<0.001). Test-retest reliability was adequate (intraclass correlation coefficient = 0.58). The 20-item version of the LVAD self-care behaviour scale showed adequate validity and reliability. The scale is ready for use in clinical practice and research. Additional testing might further optimise the scale.

• Publisher: Public Library of Science,Public Library of Science (PLoS)
• Subject: Activities of daily living / Adult / Aged / Analysis / Behavior / Behavior rating scales / Biology and Life Sciences / Chronic illnesses / Complications / Congestive heart failure / Correlation coefficient / Correlation coefficients / Delphi method / Engineering and Technology / Evaluation / Factor analysis / Factor Analysis, Statistical / Female / Health behavior / Heart failure / Heart-Assist Devices / Hebrew language / Humans / Infections / Informed consent / Literature reviews / Male / Medical records / Medical research / Medicine and Health Sciences / Medicine, Experimental / Middle Aged / Nurses / Patients / Performance evaluation / Physical Sciences / Psychometrics / Quality of Life / Quantitative psychology / Questionnaires / Reliability / Reproducibility of Results / Research and Analysis Methods / Self Care / Self-care, Health / Social Sciences / Surveys / Surveys and Questionnaires / Translations / Transplants & implants / Validation studies / Validity / Ventricle / Ventricular assist devices