Table 2: Disease-related factors in RA patients.

All patients

Disease duration (months), mean (IQR)24.00 (10.00–102.00)
RF-IgG positive, n (%)80 (57.97)
RF-IgA positive, n (%)65 (47.10)
RF-IgM positive, n (%)108 (78.26)
Anti-CCP positive, n (%)98 (71.01)
ESR (mm/h), mean ± SD
CRP (mg/dL), mean (IQR)14.90 (5.57–32.55)
DAS28, mean ± SD
Currently using DMARDs, n (%)9 (6.52)
Currently using NSAIDs, n (%)74 (53.62)
Currently using corticosteroid, n (%)0 (0)

Data are expressed as mean ± SD when normally distributed or as median (25–75%) when nonnormally distributed. IQR: interquartile range; RF: rheumatoid factor; anti-CCP: anticyclic citrullinated peptide; DAS28: disease activity score for 28 joint indices; ESR: erythrocyte sedimentation rate; CRP: C-reactive protein; DMARDs: disease-modifying antirheumatic drugs; NSAIDs: nonsteroidal anti-inflammatory drugs.