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. 2021 Dec 15;7(3):e002025. doi: 10.1136/rmdopen-2021-002025

Table 2.

Radiographic damage in NP and non-NP patients

NP (n=24) Non-NP (n=48) P value
Radiography
KL grade, n (%)* 0.003
 0 8 (33.3) 4 (8.3)
 1 8 (33.3) 11 (22.9)
 2 8 (33.3) 19 (39.6)
 3 0 (0) 13 (27.1)
 4 0 (0) 1 (2.1)
minJSW (mm), mean (SD) 3.0 (1.0) 2.1 (1.4) 0.002
Osteophyte area (mm2), mean (SD) 12.7 (11.1) 25.5 (19.1) 0.001
Mean subchondral bone density (mm Alu. Eq), mean (SD) 30.1 (4.3) 32.4 (4.7) 0.037

Statistical significant p-values are given in bold.

*Fisher’s exact test.

mm Alu Eq.; mm aluminium equivalent.KL grade, Kellgren and Lawrence grade; minJSW, minimum Joint Space Width; NP, neuropathic pain.