Table 4

Principal component analysis: factor structure and factor loadings after Varimax rotation of the 16 questions of the GO-QOL

	Four factor solution			Two factor solution
GO-QOL	Factor 1	Factor 2	Factor 3	Factor 4	Factor 1	Factor 2
Limited in cycling	0.85	−0.10	0.09	0.07	−0.07	0.72
Limited in driving	0.78	0.14	−0.21	0.27	−0.09	0.76
Limited in walking indoors	0.74	−0.02	0.23	0.28	0.10	0.77
Limited in walking outside	0.69	0.01	0.19	0.22	0.10	0.69
Limited in reading	0.12	−0.12	0.23	0.84	0.10	0.63
Limited in watching TV	0.23	0.18	−0.03	0.63	0.12	0.56
Limited in hobby	0.33	0.05	0.05	0.61	0.07	0.64
Interference with daily life	0.38	0.43	0.07	0.56	0.35	0.64
Feeling of social isolation	−0.02	0.71	−0.07	0.23	0.48	0.11
Less often on photos	0.02	0.50	0.57	−0.32	0.74	−0.15
Using camouflage	0.08	−0.06	0.71	0.10	0.45	0.17
Change in appearance	−0.01	0.38	0.69	0.20	0.75	0.15
Feeling of being watched	0.17	0.17	0.80	0.11	0.66	0.25
Unpleasant reactions	0.14	0.57	0.52	−0.14	0.76	0.05
Influence on self confidence	−0.28	0.69	0.41	0.20	0.81	−0.08
Influence on friendships	0.07	0.80	0.20	−0.03	0.70	0.04
Eigenvalues	4.6	3.1	1.4	1.2	4.6	3.1
(% variance explained)	(28.7)	(19.6)	(9.0)	(7.3)	(28.7)	(19.6)

↵Explaining 64.6% of the variance before rotation.
↵Explaining 48.4% of the variance before rotation.
↵Eigenvalues refer to the total variance explained by each factor.
↵Percentage of the total variance in the questionnaire, attributable to each factor.