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Table 3 Finger joint space width reduction estimated by computer-aided joint space analysis for distal-interphalangeal articulation

From: Joint damage in rheumatoid arthritis: assessment of a new scoring method

  Z-Score
Average Sharp Score for joint space narrowing DIP (index finger) DIP (middle finger) DIP (ring finger) DIP (little finger) DIP (total)
0 -0.01 ± 1.20 -0.18 ± 1.00 -0.07 ± 1.54 -0.03 ± 0.97 -0.14 ± 1.02
1 -0.33 ± 0.71 -0.20 ± 1.30 -0.18 ± 0.72 -0.35 ± 0. 85 -0.22 ± 0.78
2 -0.53 ± 1.27 -0.34 ± 1.02 -0.37 ± 1.06 -0.41 ± 1.03 -0.39 ± 0.77
3 -0.66 ± 1.28 -0.76 ± 1.35 -0.64 ± 1.61 -0.50 ± 1.71 -0.61 ± 1.18
Difference between score 0 and 3 0.65 ± 0.37 0.58 ± 0.38 0.57 ± 0.47 0.47 ± 0.47 0.47 ± 0.34
Significance, P NS NS NS NS NS
  1. Data presented as mean ± standard deviation. Reduction of finger joint space widths from score 0 to 3 using the average Sharp-van der Heijde score as estimated by computer-aided joint space analysis for the distal-interphalangeal (DIP) articulation. NS, not significant.