Table 2.

FA and mean diffusivity (×10⁻³ mm² s⁻¹) of the fiber tracts studied and their correlations with age

Fiber tracts	CH	FA and age correlations			Mean diffusivity and age correlations
		Mean ± SD	r	P<	Mean ± SD	r	P<
AF_FT	R	0.432 ± 0.064	0.16	0.45	0.705 ± 0.107	−0.18	0.40
	L	0.471 ± 0.028	0.28	0.19	0.752 ± 0.034	−0.68	0.00**
AF_FP	R	0.454 ± 0.022	0.42	0.04	0.764 ± 0.042	−0.62	0.00*
	L	0.437 ± 0.030	0.38	0.06	0.751 ± 0.037	−0.67	0.00**
AF_TP	R	0.428 ± 0.027	0.08	0.39	0.772 ± 0.035	−0.68	0.00**
	L	0.426 ± 0.029	0.25	0.24	0.763 ± 0.032	−0.61	0.00*
ILF	R	0.479 ± 0.027	0.18	0.35	0.822 ± 0.037	−0.39	0.04
	L	0.490 ± 0.023	0.48	0.01	0.821 ± 0.033	−0.57	0.00*
IFOF	R	0.489 ± 0.035	0.16	0.42	0.808 ± 0.036	−0.60	0.00**
	L	0.500 ± 0.025	0.57	0.00*	0.808 ± 0.032	−0.66	0.00**
UF	R	0.424 ± 0.023	0.41	0.03	0. 807 ± 0.034	−0.69	0.00***
	L	0.432 ± 0.027	0.49	0.01	0.803 ± 0.034	−0.66	0.00**
CST	R	0.579 ± 0.030	0.50	0.01	0.782 ± 0.036	−0.35	0.07
	L	0.595 ± 0.029	0.21	0.29	0.780 ± 0.045	−0.49	0.01
SS	R	0.473 ± 0.022	0.18	0.39	0.792 ± 0.048	−0.24	0.24
	L	0.476 ± 0.029	0.19	0.37	0. 787 ± 0.045	−0.23	0.27

Note: CH, cerebral hemisphere; R, right; L, left; and r, Pearson product-moment correlation coefficient; SD, standard deviation. The values of r and P are given in boldface whenever the corresponding P <0.05.

^*P <0.005,

^**P <0.0005,

^***P <0.00005.