TY - JOUR
T1 - Psychometric Properties of the 9-item European Heart Failure Self-care Behavior Scale Using Confirmatory Factor Analysis and Rasch Analysis among Iranian Patients
AU - Lin, Chung Ying
AU - Pakpour, Amir H.
AU - Broström, Anders
AU - Fridlund, Bengt
AU - Årestedt, Kristofer
AU - Strömberg, Anna
AU - Jaarsma, Tiny
AU - Mårtensson, Jan
N1 - Publisher Copyright:
© 2018 Wolters Kluwer Health, Inc. All rights reserved.
PY - 2018/5/1
Y1 - 2018/5/1
N2 - Background: The 9-item European Heart Failure Self-Care Behavior scale (EHFScB-9) is a self-reported questionnaire commonly used to capture the self-care behavior of people with heart failure (HF). Objective: The aim of this study was to investigate the EHFScB-9's factorial structure and categorical functioning of the response scale and differential item functioning (DIF) across subpopulations in Iran. Methods: Patients with HF (n = 380; 60.5% male; mean [SD] age, 61.7 [9.1] years) participated in this study. The median (interquartile range) of the duration of their HF was 6.0 (2.4-8.8) months. Most of the participants were in New York Heart Association classification II (NYHA II, 61.8%); few of them had left ventricular ejection fraction assessment (11.3%). All participants completed the EHFScB-9. Confirmatory factor analysis was used to test the factorial structure of the EHFScB-9; Rasch analysis was used to analyze categorical functioning and DIF items across 2 characteristics (gender and NYHA). Results: The 2-factor structure ("adherence to regimen" and "consulting behavior") of the EHFScB-9 was confirmed, and the unidimensionality of each factor was found. Categorical functioning was supported for all items. No items displayed substantial DIF across gender (DIF contrast, -0.25-0.31). Except for item 3 ("Contact doctor or nurse if legs/feet are swollen"; DIF contrast, -0.69), no items displayed substantial DIF across NYHA classes (DIF contrast, -0.40 to 0.47). Conclusions: Despite the DIF displayed in 1 item across the NYHA classes, the EHFScB-9 demonstrated sound psychometric properties in patients with HF.
AB - Background: The 9-item European Heart Failure Self-Care Behavior scale (EHFScB-9) is a self-reported questionnaire commonly used to capture the self-care behavior of people with heart failure (HF). Objective: The aim of this study was to investigate the EHFScB-9's factorial structure and categorical functioning of the response scale and differential item functioning (DIF) across subpopulations in Iran. Methods: Patients with HF (n = 380; 60.5% male; mean [SD] age, 61.7 [9.1] years) participated in this study. The median (interquartile range) of the duration of their HF was 6.0 (2.4-8.8) months. Most of the participants were in New York Heart Association classification II (NYHA II, 61.8%); few of them had left ventricular ejection fraction assessment (11.3%). All participants completed the EHFScB-9. Confirmatory factor analysis was used to test the factorial structure of the EHFScB-9; Rasch analysis was used to analyze categorical functioning and DIF items across 2 characteristics (gender and NYHA). Results: The 2-factor structure ("adherence to regimen" and "consulting behavior") of the EHFScB-9 was confirmed, and the unidimensionality of each factor was found. Categorical functioning was supported for all items. No items displayed substantial DIF across gender (DIF contrast, -0.25-0.31). Except for item 3 ("Contact doctor or nurse if legs/feet are swollen"; DIF contrast, -0.69), no items displayed substantial DIF across NYHA classes (DIF contrast, -0.40 to 0.47). Conclusions: Despite the DIF displayed in 1 item across the NYHA classes, the EHFScB-9 demonstrated sound psychometric properties in patients with HF.
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U2 - 10.1097/JCN.0000000000000444
DO - 10.1097/JCN.0000000000000444
M3 - Article
C2 - 28858887
AN - SCOPUS:85045200162
SN - 0889-4655
VL - 33
SP - 281
EP - 288
JO - Journal of Cardiovascular Nursing
JF - Journal of Cardiovascular Nursing
IS - 3
ER -