Primary Sjögren’s syndrome activity and damage indices comparison
ABSTRACT Background Significant differences exist in outcome measures developed to assess patients with primary Sjögren’s Syndrome (pSS). In this review, we have compared proposed indices. Methods Three activity – SSDAI (SS Disease Activity Index), SCAI (Sjo¨gren’s Systemic Clinical Activity Index) and ESSDAI (EULAR SS Disease Activity Index) – and two damage indices – SSDDI (SS Disease Damage Index) and [...]