Table 2:

Mean (± SD) diffusion measures for subjects with NF-1 and matched controls^a

	Patients with NF-1 (n = 10)	Matched Controls (n = 10)	t Statistic (df = 18)
Genu
FA	0.68 (0.06)	0.77 (0.05)	3.644b
λ∥	1.92 (0.35)	1.91 (0.14)	0.084
λ⊥c	0.52 (0.07)	0.39 (0.06)	4.46b
Trace	0.99 (0.16)	0.89 (0.04)	0.36
Body
FA	0.70 (0.05)	0.77 (0.04)	3.46b
λ∥	1.66 (0.08)	1.77 (0.13)	2.28d
λ⊥c	0.42 (0.07)	0.35 (0.06)	2.40d
Trace	0.83 (0.06)	0.82 (0.06)	0.37

^aSee text for discussion.

^bP < .05 after Bonferroni correction.

^cDiffusion trace, λ_∥, and λ_⊥ are expressed in 10⁻³ mm²/s.

^dP < .05 before Bonferroni correction only (.05/8).