Cross-cultural adaptation and validation of the Portuguese version of the Knee Outcome Survey-Activities of Daily Living Scale (KOS-ADLS)

• Autor(a) principal: Gonçalves, Rui Soles
• Data de Publicação: 2008
• Outros Autores: Cabri, Jan, Pinheiro, João Páscoa
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
• Texto Completo: http://hdl.handle.net/10316/8495; https://doi.org/10.1007/s10067-008-0996-8

Abstract The objective of this study was to cross-culturally adapt and validate the Portuguese version of the Knee Outcome Survey-Activities of Daily Living Scale (KOS-ADLS). This version was obtained with forward/backward translations, consensus panels and pre-testing. The Portuguese KOS-ADLS and Medical Outcomes Study, 36-item Short Form (SF-36) questionnaires, visual analogue scales (VAS) of pain, disability and discomfort, and a form for patient’s characteristics were administered to 168 subjects with knee osteoarthritis (OA). Reliability was acceptable (Cronbach’s alpha?=?0.91; ICC?=?0.97). There were significant correlations with SF-36 physical component subscales, all VAS, and duration of knee OA. The subjects with bilateral knee OA and that need walking aids obtained lower scores (p?<?0.001). No floor/ceiling effects were detected. Responsiveness to physical therapy was showed (standardized effect size?=?0.62; standardized response mean?=?1.02). The Portuguese KOS-ADLS evidenced acceptable reliability, validity, floor/ceiling effects, and responsiveness.