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Table 1: Demographics
Diagnosis
SPG11 (n = 31) or SPG15 (n = 3) Mutations MS Healthy Control
Number 34 34 34
Sex, female/male 16:18 16:18 16:18
Mean age (SD) at MRI (yr) 24.6 (7.8) 25.0 (6.8) 24.6 (7.5)
	Diagnosis
	SPG11 (n = 31) or SPG15 (n = 3) Mutations	MS	Healthy Control
Number	34	34	34
Sex, female/male	16:18	16:18	16:18
Mean age (SD) at MRI (yr)	24.6 (7.8)	25.0 (6.8)	24.6 (7.5)