Table 4

BAFF serum protein and future activity: percentage of visits with future disease activity over the next year by BAFF protein level.

VariableLow (<950 pg/mL)
N patients=94
N visits=309
Medium (950–1400 pg/mL)
N patients=96
N visits=306
High (>1400 pg/mL)
N patients=96
N visits=303
p ValueAdjusted p value for age, ethnicity and sex
PGA >11516210.440.42
SELENA-SLEDAI ≥25150580.370.079
Urine protein:creatinine ratio ≥0.587120.410.049
Anti-dsDNA ≥10 (Crithidia)1812310.00340.0022
C3 <7979190.0350.059
C4 <79105170.0160.026
ESR >204553540.370.30
  • BAFF, B cell activating factor; PGA, physician global assessment; SLEDAI, Systemic Lupus Erythematosus Disease Activity Index; SELENA, Safety of Estrogens in Lupus Erythematosus: National Assessment.