Table 1 Patient characteristics

Individuals, no.

92

92

100

Age (median, range)

42 (14–73)

44 (19–81)

49 (16–81)

Disease duration (median, range)

4 (0–40)

8 (0–43)

N/A

Gender (% female)

89

89

85

Ethnicity (% white)

90

90

90

SLEDAI (median, range)

8 (2–28)

2 (0–12)

N/A

Active nephritis¹ (%)

31

1

N/A

Nephritis ever (%)

43

43

N/A

class I (%)

0

0

N/A

class II (%)

0

0

N/A

class III (%)

6

6

N/A

class IV (%)

76

76

N/A

class V (%)

18

18

N/A

Anti-C1q antibodies current (%)

27

24

N/A

Immunosuppressive treatment (%)

40

50

N/A

 Azathioprine (%)

25

25

N/A

 CellCept (%)

18

17

N/A

 Methotrexate (%)

2

0

N/A

 Rituximab (%)

0

0

N/A

 Cyclosporine (%)

9

9

N/A

Prednisone treatment (%)

68

68

N/A

Prednisone dose (median, range)

10 (0–40)

10 (0–40)

N/A

Hydroxychloroquine (%)

30

37

N/A