TABLE 2.

Correlations among and descriptive statistics for demographic and dependent variables.

	Age	Race	PreFW	PreMD	PreAD	PreRD	Post-Pre	Post-Pre	Post-Pre	Post-Pre
							FW	MD	AD	RD
Age	1	0.03	${0.27}^{*}$	0.16	0.22	0.04	0.02	$-0.12$	$-0.08$	$-0.09$
Race		1	$-0.13$	$-0.11$	$-0.13$	$-0.06$	0.11	0.09	$-0.04$	0.09
PreFW			1	${0.79}^{**}$	${0.33}^{**}$	${0.76}^{**}$	$-0.23$	$-{0.48}^{**}$	$-{0.34}^{**}$	$-{0.44}^{**}$
PreMD				1	${0.58}^{**}$	${0.92}^{**}$	$-0.19$	$-{0.68}^{**}$	$-{0.43}^{**}$	$-{0.63}^{**}$
PreAD					1	0.24	0.06	$-{0.33}^{**}$	$-{0.60}^{**}$	$-0.13$
PreRD						1	$-0.24$	$-{0.65}^{**}$	$-0.24$	$-{0.70}^{**}$
Post-Pre FW							1	${0.65}^{**}$	0.22	0.63
Post-Pre MD								1	${0.57}^{**}$	${0.90}^{**}$
Post-Pre AD									1	0.19
Post-Pre RD										1

N = 61. PreFW, Pre-surgical free-water; PreMD, Pre-surgical mean diffusivity corrected for free-water; PreAD, Pre-surgical axial diffusivity corrected for free-water; PreRD, Pre-surgical radial diffusivity corrected for free-water; Post-Pre FW, Post-surgical free-water – pre-surgical free-water; Post-Pre MD, Post-surgical mean diffusivity corrected for free-water – pre-surgical mean diffusivity corrected for free-water; Post-Pre AD, Post-surgical axial diffusivity corrected for free-water – pre-surgical axial diffusivity corrected for free-water; Post-Pre RD, Post-surgical radial diffusivity corrected for free-water – pre-surgical radial diffusivity corrected for free-water. *p < 0.05. **p < 0.01.