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Table 3 Diagnostic accuracy of salivary gland ultrasonography (cutoff score of 2), in comparison with anti-Ro/SSA antibodies, Schirmer’s test and minor salivary gland biopsy focus score

From: Salivary gland ultrasonography: a highly specific tool for the early diagnosis of primary Sjögren’s syndrome

  Sensitivity Specificity Positive predictive value Negative predictive value
SGUS ≥2 33/50 (66 %) 56/57 (98 %) 33/34 (97 %) 56 /73 (77 %)
Anti-Ro/SSA antibodies 30/50 (60 %) 56/57 (98 %) 30/31 (97 %) 56/67 (74 %)
Schirmer’s test 37/50 (74 %) 32/57 (56 %) 37/62 (60 %) 32/45 (71 %)
MSGB 46/50 (92 %) 56/57 (98 %) 46/47 (98 %) 56/60 (93 %)
  1. SGUS salivary gland ultrasonography score, MSGB minor salivary gland biopsy