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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