Table 1

Description of the study groups

Symptom
Group I
Group II
Total



Mothers
Children
Mothers
Children
Mothers
Children

Systemic lupus erythematosus
10 (24)
13
18 (91)
21
28 (115)
34
Sjögren's syndrome
15 (17)
26
7 (40)
9
22 (57)
35
Asymptomatic
16 (20)
19
0
0
16 (20)
19
Total
41 (61)
58
25 (131)
30
66 (192)
88

Numbers in parentheses indicate the number of serum samples tested in each group.

Fritsch et al. Arthritis Research & Therapy 2006 8:R4   doi:10.1186/ar1848