• Acta Reumatol Port · Apr 2006

    [Cultural adaptation and validation of the "Fibromyalgia Impact Questionnaire"--Portuguese version].

    • Maria da Lapa Rosado, José Pascoalinho Pereira, João Pedro da Fonseca, and Jaime C Branco.
    • Unidade de Fisioterapia, Centro de Medicina de Reabilitação de Alcoitão, Fisioterapia. maria.rosado.4@netvisao.pt
    • Acta Reumatol Port. 2006 Apr 1; 31 (2): 157-65.

    AbstractThe aim of this study was to translate the Fibromyalgia Impact Questionnaire (FIQ) into Portuguese (Portugal) and to evaluate its reliability and validity by use with Portuguese--speaking patients with Fibromyalgia. After translating the FIQ into Portuguese we administered it to 68 patients with Fibromyalgia together with an informed consent, a Portuguese version of the Health Assessment Questionnaire (HAQ) and a formulary with the socio-demographic characteristics and duration of the complaints. The content validity was assessed with a panel of experts, with high consensus. In the concurrent validity, we obtained significant correlations between the FIQ first item and the HAQ [r = 0,531 (p = 0,001)]. Cronbach's alpha was 0,814, indicating an acceptable level of internal consistency. In conclusion, the Portuguese version of the FIQ is a reliable and valid instrument for measuring health status and physical functioning in Portuguese patients with Fibromyalgia. This instrument is available for use in the clinical practice.

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