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Table 1 Characteristics of the study subjects

From: Increased activity and expression of histone deacetylase 1 in relation to tumor necrosis factor-alpha in synovial tissue of rheumatoid arthritis

  Normal OA RA
Age mean (yr) 19.3 ± 5.0 75.9 ± 1.0 65.4 ± 2.2
No. of patients 3 13 15
Sex (F/M) 0/3 13/0 14/1
Disease duration (yr) N/A 8.6 ± 2.2 15.9 ± 2.7
CRP (mg/dl) 0.2 ± 0.1 0.1 ± 0.4 1.4 ± 0.4
Medication (no of patients)    
   Oral corticosteroid (mg/dl) 0 0 11(4.3 ± 0.5)
   Methotrexate (mg/day) 0 0 9 (6.8 ± 0.8)
   DMARDs others 0 0 6
   NSAIDs 0 5 9
  1. OA, osteoarthritis; RA, rheumatoid arthritis; NA, not applicable; Values are means ± SE.