Table 4.

Hierarchical regression model summaries for PRISM (SIS) with DHI total score

Model summaries (method: ENTER)					Model parameters for model 3
Models	Adjusted R 2	R 2 change	F change	Sig F change	Variables	Beta	p(Beta)
1	0.34	0.34	77.4	<0.001	DHI	−0.45	<0.001
2	0.36	0.02	5.6	0.02	AvP	0.18	0.01
3	0.37	0.02	4.4	0.04	HADS	−0.17	0.04

Model 1: DHI; Model 2: model 1 + AvP; Model 3: model 2 + HADS.

PRISM: Pictorial Representation of Illness and Self Measure; SIS: Self-Illness-Separation; AvP: leading dizziness characteristic (0 continuous, 1 transient attacks); HADS: Hospital Anxiety and Depression Scale summation score, DHI: Dizziness Handicap Inventory total score.