Deep Gray Matter Iron Content in Neuromyelitis Optica and Multiple Sclerosis

Table 1

Demographic and clinical data in NMO, RRMS, and HC groups.

	NMO	RRMS	HC	p
No. of subjects	20	40	20	—
Gender (male)	4 (20%)	8 (20%)	4 (20%)	1.0
Age (years)				0.54
Disease duration (years)			—	0.25
EDSS (points)	^a	^a	^a	<0.0001
Annual relapse rate	0.5 (0-3)^b	0.0 (0-2)^b		0.058

^aAll between-group difference significant (pairwise comparison), ^bmedian (range). Abbreviations: NMO: neuromyelitis optica; RRMS: remittent-relapsing multiple sclerosis; HC: healthy controls; EDSS: expanded disability status scale. Unless otherwise indicated, data are presented as .