Table 1.

Demographic characteristics of patients with dementia: Review of the studies.

Study	Study design	No. of pt, type of dementia	Mean age $\pm$ SD	Instruments	Single-task parameters	Dual-task parameters	Dual task
Allali et al.17	Cross-sectional study	19 AD	76.3 $\pm$ 8.9	SMTEC system	Speed	Speed	CB
		22 HC	71.0 $\pm$ 0.5		Stride time	Stride time
Allali et al.17	Cross-sectional study	19 FTD	62.1 $\pm$ 9.6	SMTEC system	Speed	Speed	CB
		22 HC	71.0 $\pm$ 0.5
Allali et al.5	Cross-sectional study	177 AD	83.9 $\pm$ 5.6	GAITRite system	Speed	Speed	CB3, CF3
		91 HC	83.3 $\pm$ 5.2		Stride time CV
					Stance time
					Stride length
					Stride length CV
					Swing time
					Swing time CV
Gillain et al.12	Case–control study	6 AD	73.6 $\pm$ NS	Locometrix system	Speed	Speed	CB
		14 HC	73.5 $\pm$ NS		Stride length	Stride length
Lin et al.4	Case–control study	10 AD	74.0 $\pm$ 8.6	Vicon MX system	Speed	Speed	CB, CF
		10 HC	73.8 $\pm$ 6.1		Cadence	Stride time CV
					Stride time	Stride length
					Stride time CV	Stride time
					Stride length
					Stride length CV
Maquet et al.13	Case–control study	6 AD	74.0 $\pm$ 4.0	Locometrix system	Speed	Speed, Stride length	CB
		14 HC	74.0 $\pm$ 5.0		Stride length
Muir et al.14	Case–control study	23 AD	77.5 $\pm$ 5.0	GAITRite System	Speed	Speed	NA, CB, CB7
		22 HC	71.0 $\pm$ 5.0		Stride time	Stride time CV
					Stride time CV	Stride time
Van Lersel et al.15	Case–control study	39 D NOS	78.3 $\pm$ NS	Not specified electronic walkway	Speed
		46 HC	73.8 $\pm$ NS		Stride time CV
				Stride length CV
Vergheseet al.18	Cohort study	12 AD	82.6 $\pm$ 5.7	GAITRite system	Speed
		17 VD	78.9 $\pm$ 4.7		Cadence
		4 D NOS			Stance time
		36 HC			Stride length
					Stride length CV
					Swing time
					Swing time CV
Webster et al.16	Case–control study	10 AD	77.6 $\pm$ 5.7	GAITRite system	Speed
		10 HC	72.4 $\pm$ 6.5

Notes: D NOS, dementia not otherwise specified; AD, Alzheimer’s disease; FTD, frontotemporal dementia; VD, vascular dementia; HC, healthy controls; $N$, number; Pt, patients; CF, counting forward; CB, counting backward; CB7, counting backwards by sevens; CB3, counting backwards by 3 digits; CF3, counting forward by 3; NA, naming animals; SD, standard deviation; CV, variability; NS, not specified.