Psychometric evaluation of the SF-36 (v.2) questionnaire in a probability sample of Brazilian households: results of the survey Pesquisa Dimensões Sociais das Desigualdades (PDSD), Brazil, 2008

Table 4 Hypothesized and observed associations between SF-36 v.2 scales and rotated components. PDSD, 2008 (n = 12.423),

Scale	Hypothesized associations		Correlations with components		Relative validity		Variance explained
	Physical	Mental	Physical	Mental	Physical	Mental	Total	Reliable
Physical functioning	0.85	0.17	0.77	0.12	0.83	0.02	0.60	0.63
Role physical	0.75	0.44	0.84	0.22	1.00	0.06	0.76	0.79
Bodily pain	0.73	0.38	0.62	0.40	0.55	0.21	0.55	0.66
General health	0.66	0.48	0.49	0.59	0.34	0.44	0.59	0.74
Vitality	0.44	0.73	0.28	0.85	0.11	0.91	0.80	1.00
Social functioning	0.52	0.68	0.63	0.49	0.56	0.30	0.64	0.87
Role emotional	0.44	0.72	0.75	0.29	0.80	0.11	0.65	0.69
Mental health	0.23	0.85	0.16	0.89	0.03	1.00	0.82	1.00

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