title: Validation study of the korean version of the brief fatigue inventory.
abstract: The goal of this study was to evaluate the reliability and validity of the Korean version of the Brief Fatigue Inventory (BFI-K). One hundred seventy-eight cancer patients and the same number of age- and sex-matched control subjects completed the BFI-K, the European Organization for Research and Treatment of Cancer QLQ-C30 (EORTC QLQ-C30), the Beck Depression Inventory (BDI), and a Brief Pain Inventory (BPI). The Cronbach's alpha coefficient for the BFI-K was 0.956 in the cancer patient group and 0.955 in the control group. The global score and nine of the single item scores for the BFI-K were significantly correlated with the fatigue and global health status/QoL subscale of the EORTC QLQ-C30, BDI, and BPI (coefficient range 0.38-0.66). Discriminant validity showed that BFI-K could distinguish significant differences of performance status between subgroups of patients, and between the cancer patient group and the control group, as expected. Our study has shown that the BFI-K is a reliable, valid self-rating instrument in terms of its psychometric properties.
authors.affiliation: Quality of Cancer Care Branch, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi, Korea.
authors.forename: Young Ho
authors.initials: YH
authors.lastname: Yun
authors.forename: Xin Shelley
authors.initials: XS
authors.lastname: Wang
authors.forename: Jung Suk
authors.initials: JS
authors.lastname: Lee
authors.forename: Ju Won
authors.initials: JW
authors.lastname: Roh
authors.forename: Chang Geol
authors.initials: CG
authors.lastname: Lee
authors.forename: Won Sup
authors.initials: WS
authors.lastname: Lee
authors.forename: Keun Seok
authors.initials: KS
authors.lastname: Lee
authors.forename: Soo-Mee
authors.initials: SM
authors.lastname: Bang
authors.forename: Tito R
authors.initials: TR
authors.lastname: Mendoza
authors.forename: Charles S
authors.initials: CS
authors.lastname: Cleeland
mesh_terms: D015897:Comorbidity; D003625:Data Collection / Q000592:standards*; D005060:Europe / Q000453:epidemiology; D005221:Fatigue / Q000175:diagnosis* / Q000453:epidemiology*; D005260:Female; D006801:Humans; D007723:Korea / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D009369:Neoplasms / Q000453:epidemiology*; D011788:Quality of Life; D015203:Reproducibility of Results; D018570:Risk Assessment / Q000379:methods*; D012307:Risk Factors; D012680:Sensitivity and Specificity; D012720:Severity of Illness Index; D018434:Sickness Impact Profile