Table 2. Factor analysis results.

SF-36 Item	PF	RP	BP	GH	VT	SF	RE	MH
PF01	0.68
PF02	0.87
PF03	0.91
PF04	0.93
PF05	0.94
PF06	0.93
PF07	0.96
PF08	0.97
PF09	0.99
PF10	0.95
RP1		0.94
RP2		0.93
RP3		0.95
RP4		0.93
BP1			0.94
BP2			0.96
GH1				0.62
GH2				0.81
GH3				0.88
GH4				0.84
GH5				0.87
VT1					0.58
VT2					0.64
VT3					0.83
VT4					0.81
SF1						0.88
SF2						0.70
RE1							0.94
RE2							0.95
RE3							0.91
MH1								0.64
MH2								0.74
MH3								0.55
MH4								0.86
MH5								0.64

PF, physical function; RP, role-physical; BP, bodily pain; GH, general health; VT, vitality; SF, social function; RE, role-emotional; MH, mental health.