Cognitive-Motor Interference in Multiple Sclerosis: A Systematic Review of Evidence, Correlates, and Consequences

Table 2

Characteristics of studies utilizing balance tasks during dual tasking.

Study ID	Author	Publication year	Sample size	EDSS	Motor outcome	Cognitive task	Quality
O	Wajda et al. [38]	2014	62	6.0 (2.0)^b,d	COP sway area	Word list generation	High
A	Kramer et al. [24]	2014	61	3.0 ± 1.0^a	Center of force displacement (single leg)	Random number typing	High
P	Negahban et al. [39]	2013	23	2.5 ± 1.1^a	Recurrence quantification analysis	Silent serial 3’s with endpoint recall	Medium
Q	Jacobs and Kasser [40]	2012	13	0–4.5^c	Step initiation time	Auditory stroop task	High
R	Boes et al. [41]	2012	45	2–6.5^c	COP sway area	Word list generation	High
S	Negahban et al. [42]	2011	23	2.5 ± 1.1^a	COP sway area	Silent serial 3’s with endpoint recall	High
T	Kalron et al. [43]	2011	52	1.7 ± 0.2^a	COP sway rate	Visual stroop task	High

Notes: ^aMean ± SD; ^bmedian (IQR); ^crange; ^dself-reported.