Total (N)

Bone erosions

p

Yes

No

Age (year)

≤40

9

4

(44.4)

5

0.035

>40

44

5

(11.4)

39

AC Anti CCP

Positive

15

13

(86.7)

2

0.0001

Negative

38

4

(89.5)

34

Inflammatory syndrome

Yes

37

32

(86.5)

5

0.0001

No

16

1

(93.8)

15