Table 1.

Systemic lupus international collaborating clinics classification criteria

Clinical criteria	Immunologic criteria
Acute cutaneous lupus	Antinuclear antibody
Chronic cutaneous lupus	Anti-DNA antibody
Oral or nasal ulcers	Anti-Smith antibody
Non-scarring alopecia	Antiphospholipid antibody
Arthritis	Low complements (C3, C4 or CH50)
Serositis	Direct Coombs’ test in the absence of hemolytic anemia
Renal disease
Neurologic disease
Hemolytic anemia
Leucopenia
Thrombocytopenia

Requirements: ≥ 4 criteria (at least 1 clinical and 1 laboratory criteria) or biopsy-proven lupus nephritis with positive ANA or anti-DNA