Table 5

Praxis task specific impairment rates, functional correlates and predictions

	Praxis task	MOT	Pantomime	Recognition	Imitation
Initial scores (mean (SD))	Overall	10.2 (3.2)	10.4 (2.7)	5.1 (1.2)	9.2 (3.0)
	In LHD	9.6 (3.8)	9.5 (3.7)	4.6 (1.5)	8.3 (3.3)
	In RHD	10.3 (2.7)	11.1 (1.6)	5.3 (0.9)	9.9 (2.4)
	L vs R t	−1.3	−3.6***	−3.8***	−3.5***
%Impairment	In single task	7.4	1.7	2.6	10.4
%Total impairment	Overall	22.5	16.9	16.0	33.3
	In LHD	25.7	25.7	29.7	47.3
	In RHD	26.2	6.0	7.1	23.8
	L vs R χ²	0.0	11.9***	13.8***	9.6**

FU scores (mean (SD))	Overall	11.1 (2.5)	10.9 (1.8)	5.3 (1.0)	10.2 (2.1)
	In LHD	11.1 (2.6)	10.6 (2.1)	5.2 (1.0)	9.9 (2.3)
	In RHD	11.2 (2.0)	11.3 (1.3)	5.5 (0.9)	10.4 (2.0)
	L vs R t	−0.2	−2.5*	−2.3*	−1.6
%Impairment	In single task	2.6	2.6	6.1	6.9
%Total impairment	Overall	9.5	12.1	13.9	18.2
	In LHD	8.1	16.2	20.3	24.3
	In RHD	9.5	6.0	7.1	14.3
	L vs R χ²	0.1	4.3*	5.9*	2.6

Functional correlations (controlling for hemiplegia)	Initial Barthel	0.29***	0.25***	0.25***	0.31***
	FU Barthel	0.13	0.05	0.01	0.18**
	NEADL	0.32***	0.16	0.10	0.27***

Loading correlation with discriminant function for praxis recovery		0.51	0.86	0.28	0.54

Analyses were conducted on subgroups of patients who completed all four praxis tasks and were followed-up.
Significance levels: *0.05, **0.01, ***0.001.
FU, follow-up; LHD, left hemisphere damage; MOT, Multistep Object Use test; NEADL, Nottingham Extended Activities of Daily Living Scale; RHD, right hemisphere damage.