Table 5.

Exploratory factor analysis – item loadings (n = 759)

Items		Factor 1	Uniqueness
Item 1	Pain intensity	0.60	0.64
Item 2	Personal care	0.70	0.50
Item 3	Lifting	0.65	0.58
Item 4	Walking	0.55	0.70
Item 5	Sitting	0.58	0.67
Item 6	Standing	0.52	0.73
Item 7	Sleeping	0.53	0.72
Item 8	Sex life	0.68	0.53
Item 9	Social life	0.72	0.48
Item 10	Travelling	0.76	0.43