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Table 1 Baseline characteristics of patients with recent-onset RA and healthy controlsa

From: Decreases in serum levels of S100A8/9 (calprotectin) correlate with improvements in total swollen joint count in patients with recent-onset rheumatoid arthritis

Characteristics Recent-onset RA (n= 43) Healthy controls (n= 32)
Gender, F/M 30/13 11/21
Mean age, years (±SD) 50.90 ± 16.40 43.97 ± 15.4
Mean CRP, mg/L (±SD) 16.20 ± 20  
Mean ESR, mm/1st hour (±SD) 34.20 ± 23.72  
Mean SJC out of 66 (±SD) 10.00 ± 9.28  
Mean DAS28 score (±SD) 5.31 ± 1.51  
RF positivity, n (%) 32 (74.4%)  
Anti-CCP positivity, n (%) 22 (51.2%)  
DMARDs/GCs, number of patients 42/35  
  1. aAnti-CCP, anticyclic citrullinated peptide antibody; CRP, C-reactive protein; DAS28, Disease Activity Score for 28 joints; DMARDs, disease-modifying antirheumatic drugs; RA, rheumatoid arthritis; ESR, erythrocyte sedimentation rate; F, female; GCs, glucocorticoids; M, male; RF, rheumatoid factor.