title: The fatigue impact scale for daily use in patients with hepatitis B virus and hepatitis C virus chronic infections.
abstract: BACKGROUND
  Fatigue is an important clinical finding in the hepatitis virus chronic infection. However, the absence of scales to measure fatigue, translated and validated for Brazilian Portuguese, prevents access to information essential in clarifying specific clinical conditions in this population.
  
  
  OBJECTIVE
  The aim of this study was to determine the psychometric properties of the fatigue impact scale for daily use (D-FIS), in Brazilian Portuguese, for patients with the hepatitis C virus (HCV) and hepatitis B virus (HBV) chronic infection.
  
  
  METHODS
  In this cross-sectional study, the authors evaluated the D-FIS in 101 outpatients, followed at the reference hospital. The Mini International Neuropsychiatric Interview Brazilian (MINI PLUS) was used to identify psychiatric disorders, and the Short Form Health Survey 36-item (SF-36) to evaluate the self-reported quality of life. We also examined the impact of fatigue on the quality of life of this group of patients.
  
  
  RESULTS
  Relevant psychometric D-FIS results were: floor effect proved to be 1%; skewness was 0.46; item homogeneity was 0.59 and SEM (SD = 8.51) was 2.4. The Cronbach's alpha was 0.920 and item total correlation yielded coefficients ranging from 0.65 (item 1) to 0.85 (item 3). In a linear regression model, fatigue and depression influenced the self-reported quality of life.
  
  
  CONCLUSIONS
  This study presents that the fatigue scale for daily use in Brazilian Portuguese can be considered a useful tool to verify the presence of fatigue in patients with the hepatitis viruses B and C.
authors: Programa de Pós-graduação em Medicina e Saúde, Universidade Federal da Bahia, Salvador, Bahia, Brazil.
authors: Karine
authors: K
authors: Miranda-Pettersen
authors: Programa de Pós-graduação em Medicina e Saúde, Universidade Federal da Bahia, Salvador, Bahia, Brazil.
authors: Mychelle
authors: M
authors: Morais-de-Jesus
authors: Departamento de Neurociências e Saúde Mental, Faculdade de Medicina da Bahia, Universidade Federal da Bahia, Salvador, Bahia, Brazil.
authors: Renato
authors: R
authors: Daltro-Oliveira
authors: University Hospital-Psychiatry Service, Universidade Federal da Bahia, Salvador, Bahia, Brazil.
authors: Adriana
authors: A
authors: Dantas Duarte Dias
authors: Departamento de Ciências Exatas, Universidade Estadual de Feira de Santana, Feira de Santana, Bahia, Brazil.
authors: Carlos
authors: C
authors: Teles
authors: University Hospital-Hepatology Service, Universidade Federal da Bahia, Salvador, Bahia, Brazil.
authors: Maria Isabel
authors: MI
authors: Schinoni
authors: Programa de Pós-graduação em Medicina e Saúde, Universidade Federal da Bahia, Salvador, Bahia, Brazil; Departamento de Neurociências e Saúde Mental, Faculdade de Medicina da Bahia, Universidade Federal da Bahia, Salvador, Bahia, Brazil; University Hospital-Psychiatry Service, Universidade Federal da Bahia, Salvador, Bahia, Brazil.
authors: Ângela
authors: Â
authors: Miranda-Scippa
authors: Programa de Pós-graduação em Medicina e Saúde, Universidade Federal da Bahia, Salvador, Bahia, Brazil; University Hospital-Psychiatry Service, Universidade Federal da Bahia, Salvador, Bahia, Brazil.
authors: Raymundo
authors: R
authors: Paraná
authors: Programa de Pós-graduação em Medicina e Saúde, Universidade Federal da Bahia, Salvador, Bahia, Brazil; Departamento de Neurociências e Saúde Mental, Faculdade de Medicina da Bahia, Universidade Federal da Bahia, Salvador, Bahia, Brazil; University Hospital-Psychiatry Service, Universidade Federal da Bahia, Salvador, Bahia, Brazil.
authors: Lucas C
authors: LC
authors: Quarantini
mesh_terms: D001938:Brazil / Q000453:epidemiology; D003430:Cross-Sectional Studies; D005221:Fatigue / Q000175:diagnosis* / Q000453:epidemiology / Q000209:etiology; D005260:Female; D019694:Hepatitis B, Chronic / Q000150:complications / Q000523:psychology*; D019698:Hepatitis C, Chronic / Q000150:complications / Q000523:psychology*; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D011594:Psychometrics; D011788:Quality of Life; D011795:Surveys and Questionnaires