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 |