TY - JOUR
T1 - Validity and reliability of the left ventricular assist device self-care behaviour scale
AU - Kato, Naoko P.
AU - Melnikov, Semyon
AU - Denfeld, Quin E.
AU - Casida, Jesus
AU - Strömberg, Anna
AU - Ben-Gal, Tuvia
AU - Lee, Christopher S.
AU - Jaarsma, Tiny
N1 - Publisher Copyright:
© 2023 Kato et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
PY - 2023/2
Y1 - 2023/2
N2 - Background 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. Objectives To evaluate psychometric properties of the 33-item LVAD self-care behaviour scale. Methods and results 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). Conclusions 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.
AB - Background 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. Objectives To evaluate psychometric properties of the 33-item LVAD self-care behaviour scale. Methods and results 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). Conclusions 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.
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U2 - 10.1371/journal.pone.0275465
DO - 10.1371/journal.pone.0275465
M3 - Article
C2 - 36763631
AN - SCOPUS:85147864935
SN - 1932-6203
VL - 18
JO - PloS one
JF - PloS one
IS - 2 February
M1 - e0275465
ER -