Table 1

Characteristics of SLICC patients included in this study

CharacteristicNumber (%) or mean (SD)
At baseline
 Female sex1464 (88.6)
 Age at diagnosis (years)34.2 (13.4)
 Ethnicity
  White, USA512 (31.0)
  White, other304 (18.4)
  Black277 (17.7)
  Asian251 (15.2)
  Hispanic259 (15.7%)
  Other49 (3.0)
 Education level (years)11.5 (2.0)
 Disease duration at baseline (months)5.6 (4.2)
 Highest prednisone dose before baseline (mg/day)27.4 (25.7)
 SDI baseline0.2 (0.6)
Follow-up (visits=12 236)
 Disease activity state
  Remission off-treatment2555 (20.9)
  Remission on-treatment2419 (19.8)
  LDA-TC556 (4.5%)
  mLLDAS680 (5.6)
  Active6026 (49.2)
 Antimalarials use8771 (71.7)
  • LDA-TC, low disease activity Toronto cohort; mLLDAS, modified lupus low disease activity state; SDI, Systemic Lupus International Collaborating Clinics/American College of Rheumatology Damage Index; SLICC, Systemic Lupus International Collaborating Clinics.