Current Concepts on Classification Criteria and Disease Status Indexes in Sjögren’s Syndrome

Abstract

Different classification criteria sets have been proposed for Sjogren's syndrome (SS) by different leading experts in the field, but none of them have been widely accepted in the scientific community. Finally, the more recently proposed ``American and European Consensus Group classification criteria{''} have achieved general consensus and this set now represents a ``gold standard{''} to correctly classify patients with primary and secondary variants of SS. On the contrary, so far, no validated ``disease status{''} indexes have been developed for SS. However, in the last few years, two attempts have been made on a national basis in Italy and UK to develop activity and damage criteria for SS. Nowadays, a multinational consensus is certainly needed in order to generate more largely accepted criteria to assess these disease status entities.