Table 1.

1997 Revised Classification Criteria for Systemic Lupus Erythematosus (12,49)

Malar Rash

Photosensitivity

Discoid Rash

Oral Ulcers

Arthritis

Neurological

unexplained seizures or psychosis

Renal

persistent proteinuria >500mg in 24 hours or cellular casts

Serositis

pericarditis or pleurisy

Hematological

otherwise unexplained thrombocytopenia, hemolytic anemia, lymphopenia, or neutropenia

Immunological

false positive serologic test for syphilis, anti-dsDNA, anti-Sm, anti-phospholipid

(APL)*

Antinuclear antibody

4 of 11 criteria allows classification as SLE.

^*APL was added as a part of the immunological criterium after 1982, while LE cell was removed.