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Table 1 Characteristics of the 191 patients with SLE

From: Diagnostic reliability of magnetic resonance imaging for central nervous system syndromes in systemic lupus erythematosus: a prospective cohort study

  CNS Group Non-CNS Group p
Characteristics n = 57 n = 134  
Female/male 53/4 123/11 1.000
Age at evaluation (yrs) 28 : [23, 43] 34 : [25, 45] 0.160
SLE duration at evaluation (yrs) 1 : [0, 5] 1 : [0, 4] 0.322
Clinical features    
   Malar rash/discoid rash 25 (44%) 42 (31%) 0.101
   Oral or nasal ulcers 1 (2%) 13 (10%) 0.068
   Arthritis 16 (28%) 60 (45%) 0.036
   Serositis 7 (12%) 18 (13%) 1.000
   Renal disorder 19 (33%) 37 (28%) 0.488
   Vasculitis 1 (2%) 7 (5%) 0.439
Antinuclear antibody 52 (95%) 131 (98%) 0.150
Antiphospholipid antibodies‡ 13 (23%) 39 (29%) 0.478
Lymphocytopenia (< 1500/mm3) 44 (80%) 91 (69%) 0.154
SLEDAI 15 : [10, 22] 9 : [5, 11] < 0.0001
SLEDAI without CNS score 11 : [7, 16] 9 : [5, 11] 0.606
Anti-dsDNA antibody (RIA; IU/ml) 8 : [3, 37] 20 : [5, 98] 0.035
CH50 (U/ml) 33.2 : [21.2, 39.2] 29.8 : [20.4, 38.3] 0.496
  1. *Except where indicated otherwise, values of continuous data are the median : [25% percentile, 75% percentile].
  2. P values were determined by Fisher's exact test or Mann-Whitney U test.
  3. ‡Antiphospholipid antibodies include lupus anticoagulant, anti-cardiolipin antibodies, and anti-β2GPI antibodies.
  4. CNS: central nervous system; SLEDAI: systemic lupus erythematosus disease activity index; RIA: radioimmunoassay.