Table 2 Mean and standard deviation, number and percentage of the completer, floor, ceiling scores, and not applicable (NA) answers of the FFI-Th
Item | Completer scorea | Floor score | Ceiling score | Not applicable (NA) |
|---|---|---|---|---|
(mean ± SD) | n (%) | n (%) | n (%) | |
Total score (0–100 scores) | 27.60 ± 20.30 | – | – | – |
Pain subscale (0–100 scores) | 33.42 ± 21.60 | – | – | – |
Sub-items 1–9 (0–10 scores) | ||||
 1. Worst foot pain | 4.07 ± 2.71 | 0 (0) | 1 (2.04) | 0 (0) |
 2. Morning foot pain | 3.74 ± 2.69 | 2 (4.08) | 1 (2.04) | 0 (0) |
 3. Pain walking barefoot | 3.82 ± 2.67 | 2 (4.08) | 0 (0) | 0 (0) |
 4. Pain standing barefoot | 3.14 ± 2.45 | 3 (6.12) | 0 (0) | 0 (0) |
 5. Pain walking with shoes | 2.99 ± 2.16 | 1 (2.04) | 0 (0) | 0 (0) |
 6. Pain standing with shoes | 2.79 ± 2.20 | 3 (6.12) | 0 (0) | 1 (2.04) |
 7. Pain walking with orthotics | 2.15 ± 2.03 | 3 (6.12) | 0 (0) | 26 (53.06) |
 8. Pain standing with orthotics | 2.13 ± 2.00 | 3 (6.12) | 0 (0) | 26 (53.06) |
 9. Foot pain at end of day | 3.76 ± 2.60 | 1 (2.04) | 0 (0) | 4 (8.16) |
Disability subscale (0–100 scores) | 31.17 ± 23.57 | – | – | – |
Sub-items 10–18 (0–10 scores) | ||||
 10. Walking in house | 2.42 ± 2.28 | 5 (10.20) | 0 (0) | 0 (0) |
 11. Walking outside | 3.51 ± 2.78 | 3 (6.12) | 0 (0) | 0 (0) |
 12. Walking four blocks | 3.53 ± 2.51 | 3 (6.12) | 0 (0) | 3 (6.12) |
 13. Climbing stairs | 2.80 ± 2.40 | 5 (10.20) | 0 (0) | 1 (2.04) |
 14. Descending stairs | 3.07 ± 2.49 | 4 (8.16) | 0 (0) | 1 (2.04) |
 15. Standing on tiptoes | 2.92 ± 2.43 | 3 (6.12) | 0 (0) | 1 (2.04) |
 16. Getting up from chair | 2.90 ± 2.70 | 6 (12.24) | 0 (0) | 0 (0) |
 17. Climbing curbs | 2.95 ± 2.47 | 4 (8.16) | 0 (0) | 1 (2.04) |
 18. Running or walking fast | 4.09 ± 2.82 | 1 (2.04) | 0 (0) | 3 (6.12) |
Activity limitation subscale (0–100 scores) | 14.34 ± 15.19 | – | – | – |
Sub-items19–23 (0–10 scores) | ||||
 19. Using device indoors | 1.81 ± 2.17 | 13 (26.53) | 0 (0) | 2 (4.08) |
 20. Using device outdoors | 1.05 ± 1.43 | 14 (28.57) | 0 (0) | 5 (10.20) |
 21. Staying inside all day | 2.19 ± 2.38 | 7 (14.29) | 0 (0) | 3 (6.12) |
 22. Staying in bed all day | 0.63 ± 1.19 | 16 (32.65) | 0 (0) | 19 (38.78) |
 23. Limiting activities | 0.49 ± 0.85 | 16 (32.65) | 0 (0) | 19 (38.78) |