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Table 1 Baseline patient characteristics of the two RA cohorts

From: The isotype and IgG subclass distribution of anti-carbamylated protein antibodies in rheumatoid arthritis patients

 

RA1 (n = 373)

RA2 (n = 114)

Female, n (%)

254 (68.1)

72 (63.2)

RF IgM positivity, n (%)

225 (60.3)

109 (95.6)

CCP2 IgG positivity, n (%)

217 (58.2)

114 (100)

Anti-CarP IgG positivity, n (%)

182 (49.2)

114 (100)

“Ever” smokers, n (%)

160 (42.9)

75 (65.8)

Age (years), mean (SD)

57.2 (15.8)

54.5 (12.0)

  1. anti-CarP anti-carbamylated protein, Ig immunoglobulin, RA rheumatoid arthritis, RA1 discovery cohort, RA2 replication cohort, RF rheumatoid factor, SD standard deviation