title: Validation study of the Chinese version of the Brief Fatigue Inventory (BFI-C).
abstract: A cross-sectional study was conducted among 249 Chinese cancer patients with multiple diagnoses to validate a Chinese version of the Brief Fatigue Inventory (BFI-C). Cronbach's coefficient alpha was 0.92 for fatigue severity items and 0.90 for fatigue interference items. Construct validity was explored by principal factor analysis and suggested a two-factor solution: fatigue severity and fatigue interference. Internal consistency reliability was excellent. Convergent validity was examined by correlating the BFI-C with 2 subscales and 2 component scores of the MOS 36-Item Short-Form Health Survey (coefficients ranged between -0.44 and -0.71, P<0.001). Known-group validity was examined by comparing fatigue severity in patients having different scores on the Eastern Cooperative Oncology Group Performance Status Scale. Approximately 60% of patients experienced moderate to severe fatigue (4 or greater on the 0-10 scale of the BFI-C "fatigue worst" item). The BFI-C is a valid, reliable instrument to measure the severity and impact of cancer-related fatigue among Chinese patients.
authors.affiliation: Department of Symptom Research, Division of Anesthesiology and Critical Care, The University of Texas M. D. Anderson Cancer Center, Houston, Texas 77030, USA.
authors.forename: Xin Shelley
authors.initials: XS
authors.lastname: Wang
authors.forename: Xi-Shan
authors.initials: XS
authors.lastname: Hao
authors.forename: Ying
authors.initials: Y
authors.lastname: Wang
authors.forename: Hong
authors.initials: H
authors.lastname: Guo
authors.forename: Yong-Qin
authors.initials: YQ
authors.lastname: Jiang
authors.forename: Tito R
authors.initials: TR
authors.lastname: Mendoza
authors.forename: Charles S
authors.initials: CS
authors.lastname: Cleeland
mesh_terms: D000328:Adult; D000368:Aged; D002681:China; D003430:Cross-Sectional Studies; D005221:Fatigue / Q000209:etiology / Q000503:physiopathology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009369:Neoplasms / Q000150:complications; D012720:Severity of Illness Index; D018434:Sickness Impact Profile