Feature | pJIA, n = 43 | RA, r = 59 | p, OR (95% CI) |
---|---|---|---|
Peripheral lesions* | 36 (84) | 56 (95) | 0.07 |
Global Larsen score (/160) | 28.2 ± 32.5 | 25.3 ± 23.9 | 0.62 |
Radiographic hand lesions | 34/43 (79) | 50/58 (86) | 0.35 |
Hand Larsen score, mean ± SD | 21.2 ± 23.9 | 18.5 ± 17.6 | 0.53 |
Global carpal score, mean ± SD | 5.1 ± 4.1 | 4.9 ± 3.6 | 0.80 |
Global MCP score, mean ± SD | 11.1 ± 13.3 | 8.3 ± 10.5 | 0.27 |
Global PIP score, mean ± SD | 5.1 ± 8.5 | 5.3 ± 5.7 | 0.87 |
Carpal involvement | 29/39 (74) | 40/50 (80) | 0.53 |
Carpal score**, mean ± SD | 6.8 ± 3.2 | 6.1 ± 2.9 | 0.32 |
MCP involvement | 30/39 (77) | 36/50 (72) | 0.60 |
MCP score**, mean ± SD | 14.4 ± 13.5 | 11.5 ± 10.8 | 0.34 |
PIP involvement | 20/39 (51) | 37/50 (74) | 0.03, 0.37 (0.15–0.90) |
PIP score**, mean ± SD | 9.9 ± 9.7 | 6.6 ± 5.6 | 0.11 |
Radiographic foot lesions | 32/43 (74) | 47/59 (80) | 0.53 |
Foot Larsen score, mean ± SD | 9.6 ± 11.7 | 9.8 ± 11.3 | 0.92 |
MTP involvement | 29/40 (73) | 46/57 (81) | 0.34 |
Hip damage | 14/40 (35) | 8/47 (17) | 0.06 |
Bilateral hip damage | 12/14 (86) | 2/8 (25) | < 0.01, 18 (2.01–161.05) |
↵* Peripheral lesion is considered present if there is at least 1 lesion in hands, feet, or hips.
↵** Among patients with, respectively, carpal, MCP, and PIP involvement.
pJIA: polyarticular juvenile idiopathic arthritis; RA: rheumatoid arthritis; MCP: metacarpophalangeal; PIP: proximal interphalangeal; MTP: metatarsophalangeal.