TABLE 4.

Summary of linear regression models with diffusion metrics extracted from the WMN-WM mask predicting working memory performance.

Diffusion metric	Standardized beta	T-value	P-value
Model 1
FA	0.185	1.724	0.088
Model 2
FW	0.050	0.396	0.693
FWE-FA	0.272	2.034	0.045*
Model 3
ICVF	0.250	2.360	0.020*
ODI	–0.089	–0.852	0.396
CSF fraction	0.047	0.465	0.643

FA, fractional anisotropy; FW, free water; FWE-FA, free water eliminated fractional anisotropy; ICVF, intracellular volume fraction; ODI, orientation dispersion index; CSF Fraction, cerebrospinal fluid fraction.

*p < 0.05.