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Table 1 General characteristics of 67 women with SLE

From: Cytokine and autoantibody clusters interaction in systemic lupus erythematosus

Age (IQR), years 50 (38–57)
Age at onset disease (IQR), years 29 (22–40)
Disease duration (IQR), years 13 (9–21)
Polyautoimmunitya (%) 14 (21)
Educational level (%)
 < 9 years 10 (15)
 ≥ 9 years 57 (85)
Socioeconomic statusb (%)  
 Low 19 (28)
 Intermediate 37 (55)
 High 11 (17)
1997 ACR Criteria at diagnosis (%)
 Positive ANAs 58 (87)
 Immunologic criteria 54 (81)
 Hematologic criteria 48 (72)
 Non-erosive arthritis 47 (70)
 Photosensitivity 41 (61)
 Malar rash 33 (49)
 Renal criteriac 25 (37)
 Oral ulcers 23 (34)
 Serositis 19 (28)
 Neurologic criteria 12 (18)
 Discoid rash 7 (10)
  1. ACR American College of Rheumatology
  2. aPolyautoimmunity signifies the presence of more than one autoimmune disease in a single patient
  3. bSocioeconomic status was categorized based on Colombian legislation as previously reported [23, 24]
  4. cRenal criteria was defined as active urinary sediment, or proteinuria > 500 mg/24 h or positive renal biopsy [23, 24]