Table 2

Relative weights of the additive classification criteria items

DomainItemOriginalModificationRevisedSimplified
ConstitutionalFever13132
HaematologicalLeucopenia12+7193
Thrombocytopenia26264
Autoimmune haemolysis28284
NeuropsychiatricDelirium12122
Psychosis20203
Seizure34345
MucocutaneousAlopecia13132
Oral ulcers14142
Subacute lupus erythematosus (SCLE)/discoid lupus erythematosus (DLE)29294
Acute cutanoues lupus erythematsous (ACLE)38386
SerosalEffusion34345
Acute pericarditis38386
MusculoskeletalJoint involvement34+4386
RenalProteinuria27274
Class II/V55558
Class III/IV747410
APL antibodiesAntiphospholipid13132
ComplementsC3 or C4 low19193
C3 and C4 low27274
SLE-specific antibodiesAnti-Sm40406
Anti-dsDNA38386
  • Weights derived from the phase III consensus meeting with multicriteria decisions analysis (original), added points for leucopenia and joint involvement (modification), the resulting weights (revised) and the final simplified weights (simplified).

  • SLE, systemic lupus erythematosus; anti-Sm, anti-Smith; dsDNA, double-stranded DNA; dsDNA, double-stranded DNA;