Table 7.

Results of Regression Analyses Predicting Corpus Callosum FA

	β coef	95% CI	p	F	df	p	R 2	CV R2
Interaction model				10.15	4.92	<0.001***	0.306	0.246
Age group	−0.28	[−0.34, −0.22]	0.571
Amplitude	0.34	[0.32, 0.37]	0.020*
CC volume	0.23	[0.23, 0.23]	0.040*
Age group * amplitude	0.01	[−0.02, 0.05]	0.978 ns
Main effect model				13.69	3.93	<0.001***	0.306	0.254
Age group	−0.26	[−0.28, −0.25]	0.015*
Amplitude	0.35	[0.33, 0.36]	<0.001***
CC volume	0.23	[0.23, 0.23]	0.036*

Variance explained is given by R² and cross-validated (CV) R².

* indicates p < 0.05, ** indicates p < 0.01, *** indicates p < 0.001.