Construct and criterion validity of the DUFS and DEFS4 in Lithuanian patients with coronary artery disease

摘要: Background Fatigue has become an important symptom in clinical diagnosis and trials among subjects with cardiovascular diseases disease-specific fatigue scales were developed a Dutch English version. Objective Various questionnaires for measuring have been developed, but currently no validated questionnaire targeted at disease heart failure exists the Lithuanian language. Methods Despite rigor of exploratory factor analysis analyses psychometric properties Scale Exertion (DUFS-DEFS) we adopted confirmatory approach considered as gold standard method evaluation construct validity inventories. To test criterion DUFS DEFS structural equation modelling was employed widely used Multidimensional Inventory (MFI). Results The priori specification hypothesized five-factor model MFI-20 two-factor appeared to good fit data patients. had classes severity showed statistically significant clinically relevant differences on scores. Conclusion confirmed sample cardiac MFI also supported this measure can be settings practice research.