Driving Competence in Mild Dementia with Lewy Bodies: In Search of Cognitive Predictors Using Driving Simulation

Table 2

Differences in cognitive performance between participants with Dementia with Lewy Bodies (DLB) and controls.

Variable classification	Variable	DLB group		Control group		df
		Mean DLB	SD DLB	Mean Ctrls	SD Ctrls
Global functioning	Mini-Mental State Exam (MMSE)	22.40	2.80	29.00	1.30	1, 34	90.24	<.001
	Dementia Rating Scale (DRS)	108.60	17.57	136.38	4.43	1, 34	48.72	<.001
Visual processing	Visual Object and Space Perception (VOSP) Test, Object	61.20	4.35	67.95	5.82	1, 34	14.41	.01
	Visual Object and Space Perception (VOSP) Test, space	35.20	10.58	45.48	4.62	1, 34	15.76	<.001
Attention	Test of Everyday Attention (TEA), visual selection	−2.22	.59	.97	1.90	1, 34	58.61	<.001
	Test of Everyday Attention (TEA), sustained attention	−2.02	2.41	1.14	1.16	1, 34	39.52	<.001
	Test of Everyday Attention (TEA), switching attention	−2.25	2.40	1.94	1.81	1, 34	29.92	<.001
	Useful Field of View (UFOV), processing speed	272.07	120.32	24.91	16.74	1, 34	87.25	<.001
	Useful Field of View (UFOV), divided attention	432.20	135.17	152.52	116.45	1, 34	44.16	<.001
	Useful Field of View (UFOV), selective attention	490.20	37.96	304.76	115.13	1, 34	35.86	<.001