Table 1 Clinical data of 37 patients with lupus nephritis at the time of first renal biopsy

Age (years)

37

29.6

19.6

46.5

Duration of systemic lupus erythematosus before biopsy (years)

37

0.4

0.0

7.6

Duration of follow-up (years)^a

37

5.0

1.1

8.0

Creatinine clearance (% of expected)

37

77

60

100

Serum albumin (μmol/l)

37

411

304

498

24-hour urinary protein excretion (g)

37

4.9

2.1

15.1

Systolic blood pressure (mmHg)

36

130

116

160

Diastolic blood pressure (mmHg)

36

90

71

90