Table 1 Baseline demographic and clinical data.

Sex (M:F)	1:35
Age (years)	37.2 (11.4)
SLEDAI score	13.2 (6.7)
Level of serum creatinine (μmol/l)	132.1 (101.8)
Level of serum albumin (g/l)	24.7 (5.8)
Level of proteinuria (g/day)	4.7 (3.2)
Glomerular filtration rate (ml/min/1.73 m2)	63.5 (34.3)
Renal histology
Cortical fibrosis (%)	22.1 (22.7)
Glomerosclorosis (%)	16.1 (18.8)
Prednisolone (mg/day)*	26.9 (13.6)

F, female; M, male; SLEDAI, Systemic Lupus Erythematosus Disease Activity Index.

*At the time of renal biopsy.

Values are given as mean (SD).