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Table 1 Baseline characteristics of the enrolled RA patients

From: Cytotoxic T lymphocyte-associated antigen-4-Ig (CTLA-4-Ig) suppresses Staphylococcus aureus-induced CD80, CD86, and pro-inflammatory cytokine expression in human B cells

 N = 18
Age of diagnosis, years (mean ± SD)52.6 ± 10.9
Female, n (%)17 (94.4)
Disease duration prior to abatacept, years, median (range)5.8 (0.8~30.0)
Number of previous biologics
 0, n (%)10 (55.6)
 1, n (%)3 (16.7)
 2, n (%)3 (16.7)
 3, n (%)2 (11.1)
Rheumatoid factor positive, n (%)16 (88.9)
Anti-CCP antibody positive, n (%)11 (61.1)
ESR, mm/h (mean ± SD)41.1 ± 22.7
CRP, mg/dl, median (range)1.0 (0.3~7.7)
Tender joint count (mean ± SD)4.3 ± 3.2
Swollen joint count, median (range)5 (1~12)
VAS ptGA, mm (from 0 to 100) (mean ± SD)68.8 ± 21.9
DAS28-ESR score (mean ± SD)5.3 ± 1.2
  1. Normally distributed data are represented as mean ± standard deviation (SD). Abbreviations: Anti-CCP antibody anti-cyclic citrullinated peptide antibody, ESR erythrocyte sedimentation rate, CRP C-reactive protein, VAS ptGA patient global assessment on a visual analog scale, DAS28-ESR Disease Activity Score 28 using ESR