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Table 1 Characteristics of study populations

From: B lymphocyte stimulator (BLyS) isoforms in systemic lupus erythematosus: disease activity correlates better with blood leukocyte BLyS mRNA levels than with plasma BLyS protein levels

Parameter

Normal

RA

SLE

SLE repeat

Number of subjects

30

60

60

37

Age (mean [range]; years)

36.5 (21.2–54.4)

47.3 (19.1–71.7)

39.4 (19.4–66.8)

35.1 (20.4–66.3)

Sex (female/male; n)

27/3

52/8

56/4

36/1

Race (n)

    

Asian

11

5

5

2

Black

3

3

6

3

Hispanic

13

51

49

32

White

3

1

0

0

Prednisone use

    

Number of patients

-

17

50

31

Mean dosage (mg/day)

-

5.5

10.8

6.0

Dosage range (mg/day)

-

2.5–10

2–30

1–30

Use of other medications (n)

    

Cyclophosphamide

-

0

4

2

Azathioprine

-

4

27

15

Mycophenolate mofetil

-

1

9

13

Methotrexate

-

42

2

2

Sulfasalazine

-

17

0

0

Hydroxychloroquine

-

36

53

36

Leflunomide

-

0

1

0

Any TNF antagonist

-

18

0

0

  1. RA, rheumatoid arthritis; SLE, systemic lupus erythematosus; TNF, tumor necrosis factor.