Brazilian-Portuguese version of the Health Assessment Questionnaire for Spondyloarthropathies (HAQ-S) in patients with ankylosing spondylitis: a translation,cross-cultural adaptation,and validation |
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Authors: | Samuel Katsuyuki Shinjo Roberta Gonçalves Sérgio Kowalski Célio Roberto Gonçalves |
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Institution: | 1.Division of Rheumatology, School of Medicine,University of S?o Paulo,S?o Paulo,Brazil |
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Abstract: | To translate and cross-culturally adapt to the Brazilian-Portuguese language (BP), five items were added to Health Assessment
Questionnaire (HAQ) to validate the resulting HAQ-S BP version for ankylosing spondylitis (AS). The items were translated
into BP following translation and back-translation. To assess validity, 25 patients were evaluated using the HAQ, Bath AS
Functional Index (BASFI), Bath AS Disease Activity Index (BASDAI), Bath AS Metrology Index (BASMI), and laboratory variables
(erythrocyte sedimentation rate, C-reactive protein). One question required modification to adapt culturally to Brazilian
conditions. The test–retest and interobserver correlation coefficients were 0.990 (p < 0.05) and 0.993 (p < 0.05), respectively. HAQ-S BP correlated to BASFI (r = 0.574; p < 0.05) and to HAQ (r = 0.963; p < 0.05), but not to BASDAI (r = 0.282), BASMI (r = 0.194), and laboratory variable. Individually, the fifth item referring to driving correlated highly to neck rotation (r = 0.900; p < 0.05), while the HAQ-S BP correlated to the neck rotation component (r = 0.303), but did not reach statistical significance. The HAQ-S BP version demonstrated adequate reproducibility, internal
consistency and validity, confirming its utility in the research of AS in Brazil. |
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Keywords: | Ankylosing spondylitis Assessment Disability Questionnaire Translation Validation |
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