Neurology Research International

Review Article

Psychometric Properties of Preference-Based Measures for Economic Evaluation in Amyotrophic Lateral Sclerosis: A Systematic Review

Table 2

Convergent validity of the EQ-5D-3L and the QWB-SA scale.


	Comparison measure	Correlation (r)

EQ-5D-3L	EQVAS (global rating of self-perceived Health)³³	0.60
	ALSAQ-40 (disease specific health Profile)³³
	PM	0.60
	ADL/I	0.75
	ED	0.19
	COM	0.32
	ER	0.43
	ALSFRS-R (disease specific functional Measure)²⁹	0.72
	FSozU K-14 (social support)²⁹	0.43
	BDI (depression)²⁹	0.43
QWB-SA	SF-36 (generic health profile)³⁴	0.21
QWB-SA	SIP/ALS-19 (disease specific health profile)³⁴	0.55

EQ-5D-3L: EuroQol Five Dimension 3 Level, QWB-SA: Quality of Well-Being Self-Administered Scale, EQVAS: EuroQol Visual Analogue Scale, ALSAQ-40: ALS Assessment Questionnaire 40; subscales; PM: physical mobility; ADL/I: activities of daily living/independence; ED: eating and drinking; COM: communication; and ER: emotional reactions; ALSFRS-R: Amyotrophic Lateral Sclerosis Functional Rating Scale-Revised, FSozU K-14: Social Support; BDI: Beck Depression Inventory; SF-36: Short form 36; SIP/ALS-19: Sickness Impact Profile ALS-19.