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)

^aCompleter score, the N/A answers were excluded in the analysis