Table 2: Prevalence of clinical features in different ancestral backgrounds.

Clinical feature African Americans European Americans Hispanic Americans Asian Americans Malar rash 0.49 0.53 0.70 0.60 Discoid rash 0.31 0.08 0.26 0.50 Photosensitivity 0.08 0.08 0.13 0.30 Oral ulcers 0.35 0.32 0.48 0.25 Arthritis 0.85 0.86 0.81 1.00 Serositis 0.34 0.35 0.43 0.20 Hemolytic anemia* 0.10 0.05 0.20 0.25 Lymphopenia* 0.83 0.76 1.00 0.75 Thrombocytopenia 0.14 0.05 0.00 0.10 Leukopenia 0.39 0.23 0.13 0.50 Neurologic symptoms 0.14 0.12 0.09 0.00 Anti-Smith antibody 0.41 0.18 0.39 0.40 Anti-DNA antibody 0.51 0.56 0.22 0.60 Antiphospholipid antibody* 0.42 0.43 1.00 0.25 ANA 0.98 0.91 0.95 0.88

*Data for these ACR criteria were only available for 130 SLE patients—84 African Americans, 37 European Americans, 5 Hispanic Americans, and 4 Asian Americans.