Table 3.

Group differences in tract FA and dimensional relations with SCARED scores at study entry^a.

		FA, mean (SD)			One-Way ANCOVA		Linear Regression - Child SCARED
Bilateral WM Tract		Control	Risk	AD	P value	BF (H1)	P value	BF (H1)
	WB	0.358 (0.009)	0.362 (0.010)	0.363 (0.008)	0.015	2.406	0.054	1.259
	CC	0.464 (0.013)	0.466 (0.015)	0.469 (0.012)	0.249	0.190b	0.329	0.370
	CING	0.315 (0.018)	0.319 (0.024)	0.320 (0.016)	0.523	0.101b	0.260	0.375
	IC	0.450 (0.012)	0.453 (0.013)	0.455 (0.012)	0.147	0.308b	0.054	0.829
	IFO	0.417 (0.013)	0.420 (0.015)	0.422 (0.012)	0.343	0.143b	0.773	0.232b
	SLF	0.395 (0.016)	0.400 (0.017)	0.404 (0.016)	0.030	1.214	0.048	0.694
	STRIA/FX	0.312 (0.015)	0.314 (0.016)	0.314 (0.015)	0.776	0.072c	0.865	0.249b
	UF	0.355 (0.013)	0.360 (0.013)	0.359 (0.014)	0.186	0.254b	0.930	0.230b

CC corpus callosum, CING cingulum, IC internal capsule, IFO inferior fronto-occipital fasciculus, SLF superior longitudinal fasciculus, STRIA/FX stria terminalis/fornix, UF uncinate fasciculus, WB whole-brain WM.

^aAll analyses control for age at scan. 3-D renderings (right sagittal views) generated from deterministic tractography are shown for each WM tract of interest and whole-brain WM. Green fibers extend along anterior-posterior axis; red fibers along the medial-lateral axis; and blue fibers along the superior-inferior axis.

^bModerate evidence of absence of an effect under the Bayesian framework (0.1 < BF_H1 < 0.33).

^cStrong evidence of absence of an effect under the Bayesian framework (BF_H1 < 0.1).