TY - JOUR
T1 - Health-Related Quality of Life in Patients With Ventricular Assist Device
T2 - Psychometric Evaluation of the German Version of the Quality of Life With a Ventricular Assist Device Questionnaire
AU - Spielmann, Hannah
AU - Tigges-Limmer, Katharina
AU - Albert, Wolfgang
AU - Spitz-Köberich, Christine
AU - Semmig-Könze, Sandra
AU - Staus, Paulina
AU - Herrmann-Lingen, Christoph
AU - Sandau, Kristin E.
AU - Okeson, Brynn
AU - Geyer, Siegfried
AU - Kugler, Christiane
N1 - Publisher Copyright:
© 2024 Wolters Kluwer Health, Inc. All rights reserved.
PY - 2024/11/1
Y1 - 2024/11/1
N2 - Background Ventricular assist device (VAD) implantation has become an alternative treatment for patients with end-stage heart failure. In Germany, valid and reliable instruments to assess health-related quality of life in patients with VAD are lacking. Objective The aim of this study was to present the psychometric validation of the German version of the Quality of Life with a Ventricular Assist Device questionnaire. Methods In a multicenter, cross-sectional study, 393 participants (mean age, 58.3 years; 85.8% male, 60.3% bridge to transplant, and 72.8% living with VAD for ≤2 years) completed the German Quality of Life with a Ventricular Assist Device questionnaire of physical, emotional, social, cognitive, and meaning/spiritual domains. Item and confirmatory factor analyses were conducted to test item difficulty and discrimination and the underlying structure, respectively. To examine internal consistency, Cronbach α was assessed. Convergent construct validity was tested using the Kansas City Cardiomyopathy Questionnaire and the Patient Health Questionnaire-9. Readability was examined using Flesch Reading Ease index and Vienna Factual Text Formula. Results The Quality of Life with a Ventricular Assist Device showed reasonable item difficulty (Ptotal =.67) and mostly moderate to high discriminatory power (rit > 0.30). In confirmatory factor analysis, root-mean-square error of approximation (0.07) was acceptable for model fit, but no other indices. Acceptable internal consistency was found (α ≥ 0.79), with the exception of the cognitive domain (α = 0.58). The overall questionnaire and single domains demonstrated convergent validity (r ≥ 0.45, P <.001). The questionnaire showed adequate readability (Flesch Reading Ease, 64.11; Vienna Factual Text Formula, 6.91). Conclusion Findings indicate a promising standardized clinical instrument to assess health-related quality of life in patients with VAD.
AB - Background Ventricular assist device (VAD) implantation has become an alternative treatment for patients with end-stage heart failure. In Germany, valid and reliable instruments to assess health-related quality of life in patients with VAD are lacking. Objective The aim of this study was to present the psychometric validation of the German version of the Quality of Life with a Ventricular Assist Device questionnaire. Methods In a multicenter, cross-sectional study, 393 participants (mean age, 58.3 years; 85.8% male, 60.3% bridge to transplant, and 72.8% living with VAD for ≤2 years) completed the German Quality of Life with a Ventricular Assist Device questionnaire of physical, emotional, social, cognitive, and meaning/spiritual domains. Item and confirmatory factor analyses were conducted to test item difficulty and discrimination and the underlying structure, respectively. To examine internal consistency, Cronbach α was assessed. Convergent construct validity was tested using the Kansas City Cardiomyopathy Questionnaire and the Patient Health Questionnaire-9. Readability was examined using Flesch Reading Ease index and Vienna Factual Text Formula. Results The Quality of Life with a Ventricular Assist Device showed reasonable item difficulty (Ptotal =.67) and mostly moderate to high discriminatory power (rit > 0.30). In confirmatory factor analysis, root-mean-square error of approximation (0.07) was acceptable for model fit, but no other indices. Acceptable internal consistency was found (α ≥ 0.79), with the exception of the cognitive domain (α = 0.58). The overall questionnaire and single domains demonstrated convergent validity (r ≥ 0.45, P <.001). The questionnaire showed adequate readability (Flesch Reading Ease, 64.11; Vienna Factual Text Formula, 6.91). Conclusion Findings indicate a promising standardized clinical instrument to assess health-related quality of life in patients with VAD.
KW - health-related quality of life
KW - instrument development
KW - psychometric evaluation
KW - ventricular assist device
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U2 - 10.1097/JCN.0000000000001064
DO - 10.1097/JCN.0000000000001064
M3 - Article
C2 - 37991265
AN - SCOPUS:85206987953
SN - 0889-4655
VL - 39
SP - 571
EP - 582
JO - Journal of Cardiovascular Nursing
JF - Journal of Cardiovascular Nursing
IS - 6
ER -