Table 2. Distribution of the fitting parameters for all groups: Significant differences were found for c₀ between MS patients and siblings and MS patients and controls while only a trend to significance was observed between siblings and controls.

	c0 [range] (mean±std) [s-1]	c1 [range] (mean±std) [s-1]	c2 [range] (mean±std) [s-1]
Patients	[18.25–23.04] 21.22±1.05	[0.36–1.75] 0.98±0.33	[-0.20–0.54] 0.14±0.15
Siblings	[20.95–24.47] 22.81±0.95	[0.35–2.30] 1.14±0.29	[-0.16–0.36] 0.12±0.12
Controls	[20.56–24.65] 22.22±0.97	[0.65–1.87] 1.14±0.28	[-0.30–0.54] 0.13±0.17