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Table 1 Demographic and clinical data in pSS patients and healthy controls

From: Pain and fatigue are predictors of quality of life in primary Sjögren’s syndrome

  pSS (n = 77) Controls (n = 77)
Age, mean, years 52.34 (9.03) 52.27 (8.91)
Ethnicity
 Black (%) 11.7 13
 Brown (%) 59.7 49.4
 White (%) 24.7 37.7
 Indigenous (%) 2.6 0
Education
  < 8 years (%) 50.7 57.2
  ≥ 8 years (%) 48.1 40.3
 Never studied (%) 1.2 2.5
Marital status
 Married (%) 66.2 63.6
 Not married (%) 14.3 13
 Divorced/widow (%) 19.5 23.4
CCEB
 A (%) 1.3 0
 B (%) 23.4 26.6
 C (%) 52 49.3
 D (%) 18.2 24
 E (%) 0 0
*Employment rate (%) 36.4 62.3
 Work disability (%)* 10.4 1.3
 Positive salivary biopsy (focus score ≥ 1) (%) 90.5  
 Anti-SSA/Ro (%) 33.3  
 Anti-SSB/La (%) 24  
 Antinuclear antibody (%) 68.9  
 Rheumatoid factor (%) 29.2  
 Fibromyalgia (%) 42.9  
 FACIT-Fatigue, mean, SD 26.17 (11.02)  
 ESSPRI, mean, SD 6.58 (2.29)  
 Fatigue, mean, SD 6.38 (2.57)  
 Dryness, mean, SD 6.53 (2.78)  
 Pain, mean, SD 6.84 (3.12)  
 Extra glandular manifestations (%) 49.4  
 ESSDAI, mean SD 3.34 (4.61)  
  1. pSS Primary Sjögren Syndrome, CCEB Brazilian Economic Classification Criteria, FACIT Fatigue – Functional Assessment of Chronic Illness Therapy-Fatigue, SD standard deviation, ESSPRI EULAR Sjögren’s syndrome patient reported index
  2. *p < 0.01