The Behcet's Disease Quality of Life: reliability and validity of the Korean version.
OBJECTIVE
The Behcet's Disease Quality of Life (BD-QoL) is a BD-specific measure developed in the UK. The aim of this study was to adapt the BD-QoL for use in Korea.


METHODS
The translation was based on the guidelines for cross-cultural adaptation. A total of 201 Korean patients with BD participated in this study. To evaluate the psychometric properties, internal consistency and test-retest reliability were used. Factor analysis was performed to examine the construct validity. To provide further evidence for validity, the correlation of BD-QoL with the Clinical Activity Form for Korean Patients with BD (BDCAF-K) and the Center for Epidemiologic Studies-Depression (CES-D) scales was assessed.


RESULTS
The Korean version had high internal consistency (Cronbach's alpha, 0.93) and test-retest reliability (r = 0.835). Factor analysis of the questionnaire revealed one interpretable factor as a general health-related quality of life factor. The Korean version significantly correlated with scores of CES-D (r = 0.749, p = 0.000), self-rating scale of well-being over the past 28 days (r = 0.446, p = 0.000), and BDCAF-K score (r = 0.502, p = 0.000).


CONCLUSIONS
Adaptation of the BD-QoL for use in Korea was successful. Together with the BDCAF-K, it may be a valuable tool for assessing the influence of interventions in BD patients and outcome in clinical trials.
Yi
Sang Won
SW
Department of Dermatology, Ajou University School of Medicine, Suwon, Korea.
Kim
Ji-Hae
JH
Lim
Ki-Young
KY
Bang
Dongsik
D
Lee
Sungnack
S
Lee
Eun-So
ES
D000293:Adolescent; D000328:Adult; D000368:Aged; D001528:Behcet Syndrome / Q000175:diagnosis / Q000523:psychology* / Q000628:therapy; D002648:Child; D003466:Cultural Characteristics; D005260:Female; D006801:Humans; D007723:Korea; D007802:Language; D008297:Male; D008875:Middle Aged; D011788:Quality of Life; D011795:Surveys and Questionnaires / Q000592:standards*