Table 4.

Component coefficients of the individual items of the MFPDI in older people and comparison to factor structure of Menz et al [12].

	Component 1	Component 2	Component 3	Component 4	Factor structure
% variance explained	38.9	8.2	7.1	6.6	Menz et al [12].	Current study
Item
1. I avoid walking outside at all	0.592	0.136	-0.423	0.386	AR	FL*
2. I avoid walking distances	0.702	-0.029	-0.429	-0.042	FL	FL
3. I don't walk in a normal way	0.703	-0.122	0.147	0.121	FL	FL
4. I walk slowly	0.603	-0.473	-0.150	0.051	FL	FL
5. I have to stop and rest my feet	0.773	-0.182	0.072	-0.061	FL	FL
6. I avoid hard or rough surfaces where possible	0.641	-0.084	-0.283	-0.283	FL	FL
7. I avoid standing for a long time	0.636	-0.289	-0.063	0.116	FL	FL
8. I catch the bus or use the car more often	0.539	0.218	-0.151	0.527	FL	FL/AR*
9. I need help with housework/shopping	0.644	-0.145	0.077	-0.206	AR	FL
10. I still do everything but with more pain or discomfort	0.707	0.033	0.013	-0.377	PI	FL*
11. I get irritable when my feet hurt	0.650	0.303	-0.044	0.025	PI	FL*
12. I feel self-conscious about my feet	0.551	0.278	0.470	-0.263	CA	FL*
13. I get self-conscious about the shoes I have to wear	0.420	0.101	0.599	0.470	CA	CA
14. I have constant pain in feet	0.768	0.178	0.134	-0.113	PI	FL*
15. My feet are worse in the morning	0.483	0.601	0.285	0.161	PI	PI
16. My feet are more painful in the evening	0.392	0.522	-0.078	0.107	PI	PI
17. I get shooting pains in my feet	0.643	0.309	0.055	-0.226	PI	FL*

Notes: FL – functional limitation, PI – pain intensity, CA – concern about appearance, AR – activity restriction. Factor loadings > 0.45 highlighted in bold. *Different factor loading