Abstract:Background The Health Assessment Questionnaire Disability Index (HAQ-DI) was completed with five visual analogue scales (VAS) to assess systemic sclerosis (SSc). These VAS address overall disease severity, Raynaud’s phenomenon, digital tip ulcers, gastrointestinal and lung symptoms. The new functional measurement instrument is called Scleroderma HAQ (SHAQ). It aims to perform a validation of the European Portuguese version of SHAQ for patients with SSc.Methods Patients with different forms of SSc from five Hos… Show more
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