Validity and Reliability of the Korean Version of the Caregiver Burden Questionnaire for Family Caregivers of Hemodialysis Patients.

Aim: This study aimed to adapt and validate the Korean version of the Caregiver Burden Questionnaire for Family Caregivers of Hemodialysis Patients, originally developed by Hejazi et al. in 2022, to ensure its applicability and validity in Korea.

Methods: Using both online and offline approaches, this study included 230 family caregivers. Data analysis was performed with SPSS AMOS version 29.0 using the Korean version of the Caregiver Burden Questionnaire for Family Caregivers of Hemodialysis Patients and the Korean version of the Zarit Burden Interview as the primary instruments.

Results: The findings confirmed the high content validity of the questionnaire (scale-level content validity index = .99), and confirmatory factor analysis established its construct validity. Convergent validity was confirmed with average variance extracted values ranging from .43 to .87, and composite reliability scores ranging from .80 to .91. A significant positive correlation with the Korean version of the Zarit Burden Interview (r = .81) demonstrated concurrent validity. The tool consists of 21 items across four factors on a 5-point Likert scale, exhibiting excellent internal consistency (Cronbach's α = .91) and good test-retest reliability (intraclass correlation coefficient = .79).

Conclusions: This study validated a reliable instrument for assessing caregiver burden in families of hemodialysis patients in Korea. This tool accurately measures caregiver challenges and has the potential to enhance societal health and welfare.