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Table 1 Patient characteristics

From: Rheumatoid arthritis patients with fibromyalgic clinical features have significantly less synovitis as defined by power Doppler ultrasound

  TJC minus SJC ≥7 (TJC criteria) TJC minus SJC <7 P TP ≥11 (ACR 1990 criteria) TP <11 P Fulfil both ACR 1990 and TJC criteria Do not meet both TJC and ACR criteria P
  n = 26 n = 21   n = 19 n = 28   n = 17 n = 30  
Age (SD) 57 66   57 63   57 63  
Sex F (%) 22 (85) 16 (76)   16 (84) 22 (79)   15 (88) 24 (80)  
RFa (%) 16 (62) 17 (81)   10 (53) 23 (82)   9 (53) 24 (80)  
DAS28 (SD) 4.99 (0.97) 4.03 (1.00) 0.002 5.23 (0.75) 4.11 (1.00) <0.001 5.27 (0.68) 4.16 (1.07) <0.001
TJ (SD) 15.15 (5.21) 5.24 (4.17) <0.001 15.663 (5.84) 7.39 (5.40) <0.001 16.47 (5.52) 7.47 (5.26) 0.002
SJ (SD) 1.50 (1.99) 3.52 (3.82) 0.67 1.84 (2.29) 2.79 (3.51) 0.44 1.71 (2.14) 2.80 (3.48) 0.457
ESR (SD) 18.96 (14.79) 20.67 (18.53) 0.94 20.53 (14.44) 19.18 (17.84) 0.38 18.35 (10.99) 20.50 (18.92) 0.157
PG (SD) 56.42 (18.45) 47.76 (20.82) 0.13 57.05 (18.31) 49.50 (20.52) 0.23 59.65 (17.50) 48.53 (20.18) 0.487
  1. amissing data for one patient
  2. Figures given as means and SD
  3. DAS28 twenty-eight joint disease activity score, SJC swollen joint count, SJ swollen joints, TP tender points, TJC tender joint count, TJ tender joints, PG patient global, RF rheumatoid factor