Table 2.

Sociodemographic variables and regional fractional anisotropy: full models.

	Outcome (Fractional Anisotropy; N = 192)
	R Frontal		L Frontal		R Temporal		L Temporal		R Parietal		L Parietal		R Occipital		L Occipital
Predictor	β	sr2	β	sr2	β	sr2	β	sr2	β	sr2	β	sr2	β	sr2	β	sr2
SES∗Age∗Race	–0.02	0.000	–0.15	0.000	0.20	0.001	0.01	0.000	0.58	0.005	0.32	0.001	–0.18	0.000	0.22	0.001
Age∗Race	–0.54	0.006	–0.27	0.001	–0.42	0.003	–0.38	0.003	–0.44	0.004	–0.48	0.004	–0.27	0.002	–0.54	0.006
Age∗SES	–0.18	0.001	0.08	0.000	–0.38	0.003	–0.10	0.000	–0.41	0.003	–0.24	0.001	–0.15	0.000	–0.44	0.004
Race∗SES	–0.08	0.000	0.20	0.000	–0.29	0.001	–0.09	0.000	–0.58	0.004	–0.32	0.001	0.11	0.000	–0.38	0.002
Age	–0.21	0.013	–0.27*	0.020	–0.01	0.000	–0.14	0.005	–0.20	0.011	–0.21	0.012	–0.21	0.013	–0.11	0.003
Race	0.49	0.004	0.15	0.000	–0.44	0.003	0.42	0.003	0.45	0.003	0.43	0.003	0.26	0.001	0.57	0.005
SES	–0.07	0.000	–0.38	0.002	0.24	0.001	–0.08	0.000	0.24	0.001	0.01	0.000	–0.09	0.000	0.26	0.001
Sex	–0.13	0.016	–0.08	0.005	–0.14	0.017	–0.14	0.017	–0.16*	0.023	–0.09	0.008	–0.09	0.007	–0.12	0.014

SES = socioeconomic status; R = right; L = left. Full models reflect the models that include all interactions, prior to the backward elimination procedure. ^∗p < 0.05. Data reflect standardized regression coefficients (β) and semipartial correlations squared (sr²).