Table 1

 Demography of patients with rheumatoid arthritis (RA)

Synovial fluidSynovial tissueSerum anti-TNFα study baseline values
CRP, C-reactive protein; ESR, erythrocyte sedimentation rate; RF, rheumatoid factor.
For age, disease duration, ESR, and CRP levels, mean (SD) values are given. Numbers of female/male and RF positive/negative patients are also given.
*ESR and CRP levels were available for 25 patients.
†ESR and CRP levels were available for 19 patients.
Age, mean (SD)64 (10)60 (11)52 (13)
Disease duration12±159±1214±9
Sex ratio (female/male)23/716/717/5
RF (+/−)19/1113/1016/6
ESR (mm/1st h)32.1±20.8*42.3±33.4†44.1±29.1
CRP (mg/l)27.2±34.5*36.8±41.4†24.9±28.6