Skip to main content

Table 3 Positive predictive value (PPV) of the anti-CCP antibody for erosive arthritis in each disease

From: Long-term follow-up of patients with anti-cyclic citrullinated peptide antibody-positive connective tissue disease: a retrospective observational study including information on the HLA-DRB1 allele and citrullination dependency

Disease name

Without erosion‡

N = 36

With erosion‡

N = 29

PPV

%

SLE

17 (3)

6 (6)

26

Primary SS

6 (1)

0 (0)

0

SSc

2 (2)

13 (13)

87

PM/DM

7 (4)

0 (0)

0

MCTD/overlap syndrome

3 (1)

5 (5)

63

AOSD

0 (0)

1 (1)

100

SpA

1 (0)

1 (1)

50

Vasculitis

0 (0)

3† (3)

100

  1. †Microscopic polyangiitis; n = 1, polyarteritis nodosa; n = 1, Takayasu arteritis; n = 1
  2. ‡Number in parentheses stands for the number of RA-overlapped patients