Differential diagnostic performance of Rose Bengal Score Test in Sjøgren's syndrome patients.

Aim of the study was to evaluate the diagnostic performance of the Rose Bengal score test for Sjøgren's syndrome (SS), and to explore differences between other tests and examinations. All participants were examined, including (but not limited to) unstimulated (UWS) and stimulated (SWS) whole saliva, labial gland biopsy (LGB or focus score), ophthalmologic questionnaire (ocular surface disease index OSDI) and objective tests: Schirmer test 1 (Sch. 1), Schirmer test 2 (Sch.