Development and validation of the self-administered Fibromyalgia Assessment Status: a disease-specific composite measure for evaluating treatment effect

Table 4 Convergent construct validity analysis: correlation matrix of overall FAS scores and their components vs the SF-36 dimensions

			Medical outcomes SF-36 health survey
			PF	RF	BP	GH	VT	SF	RE	MH	PCS	MCS
Spearman's rho	SAPS	Correlation coefficient	-0.142 (*)	-0.141 (*)	-0.214 (**)	-0.187 (**)	-0.175 (*)	-0.213 (**)	-0.242 (**)	-0.269 (**)	-0.139 (*)	-0.297 (**)
	FATIGUE	Correlation coefficient	-0.143 (*)	-0.297 (**)	-0.451 (**)	-0.189 (**)	-0.670 (**)	-0.270 (**)	-0.327 (**)	-0.306 (**)	-0.342 (**)	-0.401 (**)
	SLEEP	Correlation coefficient	0.148 (*)	0.139 (*)	-0.246 (**)	-0.213 (**)	-0.518 (**)	0.141 (*)	-0.276 (**)	-0.288 (**)	0.154 (*)	-0.401 (**)
	FAS	Correlation coefficient	-0.138 (*)	-0.157 (*)	-0.336 (**)	-0.267 (*)	-0.593 (**)	-0.225 (**)	-0.318 (**)	-0.350 (**)	-0.240 (**)	-0.531 (**)

** Correlation significant at 0.001 level (2-tailed).
* Correlation significant at 0.01 level (2-tailed).
BP = bodily pain; FAS = Fibromyalgia Assessment Status; GH = perceived general health; MCS = mental component scale summary score; MH = mental health; PCS = physical component scale summary score; PF = physical functioning; RE = role function/emotional aspect; RF = role function/physical aspect; SAPS = Self-Assessment Pain Scale; SF = social functioning; SF-36 = Short Form 36 Health Survey; VT = vitality.

ISSN: 1478-6362