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Table 1 Characteristics of patients

From: TAM receptor ligands in lupus: Protein S but not Gas6 levels reflect disease activity in systemic lupus erythematosus

  Lupus matched (n= 45) Normal control (n= 45) Lupus unmatched (n= 62)
Age (years) 40.47 ± 15.5 41.38 ± 15.9 37.27 ± 13.02
Sex (F:M) 34:11 34:11 51:11
Ethnicity    
Caucasian 41 41 54
African 2 2 2
Asian 1 1 3
American Indian 1 1 3
ACR total 5.51 ± 1.69   5.53 ± 1.72
Anti-dsDNA Ab (%) 33.3   22.6
Anti-Sm Ab (%) 28.9   12.5
Anti-Ro (SSA) Ab (%) 42.2   35.5
Anti-La (SSB) Ab (%) 8.9   22.6
Anticardiolipin Ab (%) 48.8   35.7
Lupus anticoagulant (%) 15.6   11.7
Anti-B2 glycoprotein Ab (%) 11.1   14.5
APS (%) 37.8   14.8
Decreased C3 (%) 8.9   4.8
Decreased C4 (%) 42.2   30.7
SLEDAI 6.02 ± 4.3   4.75 ± 4.08
BILAG 6.93 ± 5.34   5.59 ± 3.73
  1. Ab, antibody; ACR total, the number of American College of Rheumatology 1982 revised criteria for classification of systemic lupus erythematosus; APS, antiphospholipid syndrome; BILAG, British Isles Lupus Assessment Group; F, female; M, male; SLEDAI, Systemic Lupus Erythematosus Disease Activity Index.