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Table 2 Mean and standard deviation, number and percentage of the completer, floor, ceiling scores, and not applicable (NA) answers of the FFI-Th

From: Thai version of the foot function index: a cross-cultural adaptation with reliability and validity evaluation

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)
  1. aCompleter score, the N/A answers were excluded in the analysis