title: The Behcet's Disease Quality of Life: reliability and validity of the Korean version.
abstract: 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.
authors.affiliation: Department of Dermatology, Ajou University School of Medicine, Suwon, Korea.
authors.forename: Sang Won
authors.initials: SW
authors.lastname: Yi
authors.forename: Ji-Hae
authors.initials: JH
authors.lastname: Kim
authors.forename: Ki-Young
authors.initials: KY
authors.lastname: Lim
authors.forename: Dongsik
authors.initials: D
authors.lastname: Bang
authors.forename: Sungnack
authors.initials: S
authors.lastname: Lee
authors.forename: Eun-So
authors.initials: ES
authors.lastname: Lee
mesh_terms: 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*