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Table 1 Characteristics of patients and controls

From: Identification of definitive serum biomarkers associated with disease activity in primary Sjögren’s syndrome

Characteristic Healthy controls (n = 30) Patients with pSS (n = 30)
Demographic   
 Female, n (%) 30 (100) 29 (97)
 Age, mean (SD), years* 39.9 (9.4) 61.1 (10.8)
Disease duration, mean (SD), years * NA 4.7 (6.6)
Clinical manifestation, n (%)   
 Ocular symptoms NA 18 (60)
 Oral symptoms NA 21 (70)
 Objectively assessed dryness NA 24 (80)
 Anti-SSA positivity NA 24 (80)
 Anti-SSB positivity NA 14 (48)
 Lymphocytic sialadenitis with focus score ≥1 NA 12 (40)
ESSDAI, mean (SD) * NA 2.6 (4.2)
Treatment   
 Corticosteroid NA 1 (3)
 Immunosuppressant NA 0 (0)
  1. *Data are presented as mean ± standard deviation (SD) or number (%). pSS primary Sjögren’s syndrome, ESSDAI the European League Against Rheumatism Sjögren’s Syndrome Disease Activity Index, NA not applicable