Table 1 Patient characteristics
|  | Total group (n = 38) | Subgroup (n = 23) |
|---|---|---|
Age, years | 52.5 (13.9) | 53.9 (12.1) |
Female, n (%) | 28 (73.7) | 18 (78.3) |
Body-mass index, kg/m2 | 26.7 (8.8) | 26.3 (4.9) |
Disease duration*, years | 5.5 (1.0;8.5) | 6.0 (2.0;10.0) |
DAS-44* | 1.7 (0.9;2.3) | 1.4 (1.0;2.0) |
 remission (< 1.6), n (%) | 22 (57.9) | 14 (60.9) |
 low disease activity (1.6–2.3), n (%) | 9 (23.7) | 6 (26.1) |
 moderate disease activity (2.4–3.6), n (%) | 5 (13.2) | 2 (8.7) |
 high disease activity (≥ 3.7), n (%) | 2 (5.3) | 1 (4.3) |
Location of foot pain, n (%) | ||
 rearfoot | 2 (5.3) | – |
 forefoot | 29 (76.3) | 23 (95.8) |
 hallux | 2 (5.3) | – |
 combination | 5 (13.2) | 1 (4.2) |
Uni−/ bilateral foot pain, n (%) | ||
 unilateral | 5 (13.2) | 2 (8.7) |
 bilateral | 33 (86.8) | 21 (91.3) |
Sharp / van der Heijde score feet* | ||
 total score (range 0–168) | 1.0 (0.0;13.8) | 1.0 (0.0;28.0) |
 foot joint erosion (range 0–120) | 0.0 (0.0;1.0) | 0.0 (0.0;11.0) |
 joint space narrowing (range 0–48) | 0.0 (1.0;0.3) | 0.00 (0.0;4.0) |
Platto-score* | ||
 total score (range 0–19) | 2.0 (1.0;4.0) | 1.8 (1.0;4.4) |
 forefoot deformity (range 0–12) | 1.0 (0.0;3.0) | 0.8 (0.0;3.0) |
 rearfoot deformity (range 0–7) | 1.0 (1.0;1.5) | 1.0 (1.0;1.5) |
FOs wearing time a day, n (%) | ||
  < 1 h | 1 (2.9) | 0 (0) |
 1–4 h | 8 (22.9) | 4 (16.7) |
 4–8 h | 13 (37.1) | 10 (41.7) |
 8–12 ours | 8 (22.9) | 2 (8.3) |
  > 12 h | 5 (14.3) | 3 (12.5) |