Reumatismo
-
The Bath Ankylosing Spondylitis Functional Index (BASFI) and the Dougados Functional Index (DFI) are the most commonly used instruments to measure functioning in ankylosing spondylitis (AS). The aim of this study was to translate, adapt and validate these instruments into the Italian language. ⋯ The Italian versions of the BASFI and DFI showed adequate reliability and validity in patients with AS. Because of psychometric advantages, the BASFI may be preferred in clinical trial settings. However, sensitivity to changes due to drug therapy and/or rehabilitation remains to be determined.