Table 1

Baseline characteristics of patients evaluated

Characteristicn (%) or median (IQR)
Gender, female1211 (89.7)
Age at baseline, years28.0 (21.0–37.0)
Ethnicity
 Caucasian564 (41.8)
 Mestizo577 (42.7)
 African Latin American158 (11.7)
 Other51 (3.8)
 Educational level, years9.0 (6.3–12.0)
Socioeconomic status
 High132/1345 (9.8)
 Medium391/1345 (29.1)
 Low822/1345 (61.1)
 Medical coverage806/1337 (60.3)
 SLE Disease Activity Index at baseline8.5 (7.0–15.0)
 SDI at baseline0.0 (0.0–1.0)
 Disease duration at baseline, years0.3 (0.0–0.9)
 Follow-up, years2.4 (0.7–5.6)
  • SDI, SLICC/ACR damage index.