title: [Adaptation and validation of the Spanish version of a disease-specific quality of life measure in patients with systemic lupus erythematosus: the Lupus quality of life].
abstract: OBJECTIVE
  Systemic Lupus Erythematosus (SLE) is an auto-immune disease that seriously affects quality of life. There are various specific instruments that measure health-related quality of life (HRQOL), but none of them has been adapted to Spanish. We intended to adapt and validate in a Spanish population a specific HRQOL measure in patients with SLE.
  
  
  METHODS
  The adaptation was carried out using the translation and back-translation method of the English version of the LupusQoL, with its subsequent application to 115 adults with SLE.
  
  
  RESULTS
  The factorial analysis identified 5 domains of the LupusQoL; the reliability tests showed a high Cronbach alpha coefficient of 0.977 and a high Guttman two-halves coefficient of 0.936; the significant correlations of the LupusQoL with the SF-36 showed a high convergent validity of the questionnaire; in addition, the correlations with the SLEDAI and SLICC were low, which showed its discriminated validity.
  
  
  CONCLUSIONS
  The Spanish version of the LupusQoL has stable psychometric properties to measure HRQOL in people with SLE in clinical and research settings in a Spanish-speaking population.
authors: Departamento de Personalidad, Evaluación y Tratamiento Psicológico, Facultad de Psicología, Universidad de Granada, España.
authors: Viviana
authors: V
authors: González-Rodríguez
authors: María Isabel
authors: MI
authors: Peralta-Ramírez
authors: Nuria
authors: N
authors: Navarrete-Navarrete
authors: Jose Luis
authors: JL
authors: Callejas-Rubio
authors: Ana María
authors: AM
authors: Santos Ruiz
authors: Munther
authors: M
authors: Khamashta
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D007802:Language; D008180:Lupus Erythematosus, Systemic; D008297:Male; D011788:Quality of Life; D011795:Surveys and Questionnaires