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Table 1 Clinical and serological characteristics of patients with palindromic rheumatism (PR) and rheumatoid arthritis (RA)

From: Differing specificities and isotypes of anti-citrullinated peptide/protein antibodies in palindromic rheumatism and rheumatoid arthritis

 

PR (n = 54)

RA (n = 54)

p

Female, n (%)

34 (62.9)

34 (62.9)

NS

Age (year), mean ± SD

51.2 ± 11.3

54.7 ± 11.8

NS

Disease duration (years), mean ± SD

11.6 ± 10.7

8.3 ± 6.1

NS

RF n (%)

31 (57.4)

30 (55.6)

NS

RF levelsa, mean ± SD

237.3 ± 300.6

379.6 ± 715.9

NS

CCP2 n (%)

36 (66.7)

36 (66.7)

NS

CCP2 levelsa, mean ± SD

392.6 ± 527.6

487.4 ± 584.4

NS

  1. aMeasured only in positive patients
  2. CCP cyclic citrullinated peptide, NS not significant, RA rheumatoid arthritis, RF Rheumatoid factor