Skip to main content

Table 3 BoneXpert parameters in PsA patients stratified by SHS Erosion and joint space narrowing scores

From: Psoriatic arthritis is associated with bone loss of the metacarpals

Erosion Score BHI MCI T-scoreMCI T W Joint Space Narrowing Score BHI MCI T-scoreMCI T W
0 (n = 33) 5.90 (0.49) 0.601 (0.059) −0.324 (1.039) 2.08 (0.28) 8.03 (0.95) 0 (n = 35) 5.73 (0.57) 0.582 (0.063) −0.681 (1.163) 1.98 (0.32) 7.99 (0.89)
1 (n = 13) 5.80 (0.46) 0.593 (0.042) −0.554 (0.845) 2.00 (0.28) 7.85 (0.89) 1 (n = 26) 5.65 (0.46) 0.568 (0.058) −0.986 (1.055) 1.96 (0.25) 8.66 (0.94)
2 (n =13) 5.59 (0.58) 0.553 (0.055) −1.154 (1.104) 1.95 (0.33) 8.51 (1.09) 2 (n =16) 5.57 (0.43) 0.547 (0.032) −1.289 (0.591) 1.94 (0.26) 8.19 (1.20)
3 (n = 19) 5.28 (0.32) 0.523 (0.028) −1.800 (0.536) 1.77 (0.21) 8.41 (1.20) 3 (n = 15) 5.34 (0.55) 0.537 (0.061) −1.457 (1.153) 1.82 (0.32) 8.29 (1.16)
4 (n = 16) 5.22 (0.36) 0.515 (0.042) −1.923 (0.754) 1.75 (0.22) 8.46 (1.16) 4 (n = 12) 4.52 (0.52) 0.437 (0.050) −3.416 (0.952) 1.45 (0.23) 8.69 (1.04)
5 (n = 10) 4.45 (0.55) 0.430 (0.046) −3.510 (0.912) 1.43 (0.25) 8.70 (0.95)
Absolute and relative changes between score 0 and score 5 −1.45
 − 24.6 %
−0.171
 − 28.5 %
−3.186 −0.65
  31.3 %
0.67
8.3 %
Absolute and relative changes between score 0 and score 4 −1.21
 − 21.1 %
−0.145
 − 24.9 %
−2.735 −0.53
 − 26.8 %
0.70
8.8 %
Significance <0.01 <0.01 <0.01 <0.01 NS Significance <0.01 <0.01 <0.01 <0.01 NS
  1. Data presented as mean (standard deviation)
  2. BHI Bone Health Index, MCI Metacarpal Index, NS not significant, PsA psoriatic arthritis, SHS Score Psoriatic Arthritis modified van der Heijde Sharp Score, T cortical thickness of the metacarpal bone, W width of the metacarpal bone