Cognitive performance in relapsing remitting multiple sclerosis: A longitudinal study in daily practice using a brief computerized cognitive battery

Table 6 Number of patients impaired by ≥ 1 SD on three or more cognitive domains from the CDR System

Patient Impaired in Three or More Cognitive Domains?	Day -60		Month 24
	N (%)	EDSS mean (SD)	N (%)	EDSS mean (SD)
No	26 (60.5)	2.4 (1.15)	23 (59)	2.4 (1.46)
Yes	17 (39.5)	3.4 (0.84)	16 (41)	3.3 (1.27)
T-test on EDSS		t 3.34 [40] p = 0.0018		t 2.06 [35] p = 0.0469

SD, Standard Deviation. Correcting for multiplicity p-values are statistically significant at p < 0.025.
CDR System domain scores: Power of Attention; Continuity of Attention; Quality of Working Memory; Quality of Episodic Memory; and Speed of Memory.

ISSN: 1471-2377