Table 1.

Correlation between SF-36, WHOQOL BREF, ESSPRI, ESSDAI and FACIT-fatigue

	ESSDAI	ESSPRI		ESSPRI		FACIT-Fatigue

		dryness	fatigue	pain	total

SF-36
Physical function	0.03	−0.29^**	−0.43^*	−0.57^*	−0.55^*	0.54^*
Role-Physical	0.04	−0.08	−0.12	−0.24^**	−0.24^**	0.35^*
Bodily Pain	0.04	−0.22	−0.34^*	−0.59^*	−0.53^*	0.52^*
General Health	−0.07	−0.16	−0.25^**	−0.35^*	−0.36^*	0.49^*
Vitality	0.01	−0.26^**	−0.22	−0.37^*	−0.37^*	0.49^*
Social Functioning	0.03	−0.18	−0.31^*	−0.22	−0.29^**	0.45^*
Role-Emotional	−0.22	−0.12	−0.28^**	−0.23^**	−0.28^**	0.48^*
Mental Health	0.09	−0.23^**	−0.21	−0.31^*	−0.34^*	0.45^*
Physical Component Summary	0.05	−0.21	−0.34^*	−0.55^*	−0.49^*	0.46^*
Mental Component Summary	−0.09	−0.17	−0.18	−0.13	−0.21	0.47^*
WHOQOL BREF
Physical health	−0.09	−0.19	−0.34^*	−0.43^*	−0.43^*	0.66^*
Psychological	−0.04	−0.19	−0.32^*	−0.36^*	−0.38^*	0.56^*
Social relationships	0.02	−0.12	−0.17	−0.34^*	−0.28^**	0.35^*
Environment	−0.01	−0.18	−0.19	−0.49^*	−0.39^*	0.29^**
ESSDAI		−0.01	−0.01	−0.04	−0.08	−0.04