Table 1
Study group
Healthy controls
CD
AS
uSpA
PsA
RA
n
45
26
43
20
45
56
Mean age (range)
51 (25–86)
38 (17–70)
43 (18–66)
39 (18–57)
43 (19–66)
56 (33–78)
Female/male
28/17
16/10
10/33
8/12
17/28
35/21