Table 5.
SES indicators and regional fractional anisotropy: final models.
| SES Interaction Term (All Ns = 192) |
||||||
|---|---|---|---|---|---|---|
| Variable | Continuous Education |
Dichotomous Education |
Poverty Status |
|||
| β | sr2 | β | sr2 | β | sr2 | |
| R Frontal | ||||||
| Age | –0.27*** | 0.069 | –0.27*** | 0.070 | –0.28*** | 0.076 |
| SES | 0.12 | 0.014 | –0.13 | 0.015 | –0.20** | 0.037 |
| Race | –0.12 | 0.014 | –0.13 | 0.017 | –0.09 | 0.007 |
| Sex | –0.10 | 0.009 | –0.09 | 0.009 | –0.11 | 0.013 |
| L Frontal | ||||||
| Age | –0.25** | 0.060 | –0.26** | 0.062 | –0.27*** | 0.070 |
| SES | 0.09 | 0.008 | –0.11 | 0.012 | –0.21** | 0.045 |
| Race | –0.11 | 0.011 | –0.12 | 0.014 | –0.07 | 0.005 |
| Sex | –0.04 | 0.002 | –0.04 | 0.002 | –0.06 | 0.004 |
| R Temporal | ||||||
| Age | –0.06 | 0.003 | –0.07 | 0.005 | –0.08 | 0.006 |
| SES | 0.01 | 0.000 | –0.09 | 0.008 | –0.12 | 0.014 |
| Race | –0.03 | 0.001 | –0.05 | 0.002 | –0.01 | 0.000 |
| Sex | –0.11 | 0.011 | –0.12 | 0.013 | –0.13 | 0.015 |
| L Temporal | ||||||
| Age | –0.15* | 0.021 | –0.16* | 0.023 | –0.16 | 0.023 |
| SES | 0.09 | 0.007 | –0.12 | 0.013 | –0.12 | 0.012 |
| Race | –0.02 | 0.000 | –0.03 | 0.001 | 0.01 | 0.000 |
| Sex | –0.11 | 0.012 | –0.11 | 0.012 | –0.12 | 0.013 |
| R Parietal | ||||||
| Age | –0.23** | 0.051 | –0.23** | 0.051 | –0.25** | 0.059 |
| SES | 0.05 | 0.002 | –0.03 | 0.001 | –0.14∧ | 0.018 |
| Race | 0.02 | 0.001 | 0.02 | 0.000 | 0.05 | 0.002 |
| Sex | –0.14 | 0.018 | –0.13 | 0.018 | –0.15* | 0.023 |
| L Parietal | ||||||
| Age | –0.25** | 0.058 | –0.25** | 0.058 | –0.26*** | 0.064 |
| SES | 0.09 | 0.007 | –0.08 | 0.006 | –0.15* | 0.021 |
| Race | –0.05 | 0.003 | –0.06 | 0.003 | –0.03 | 0.009 |
| Sex | –0.07 | 0.005 | –0.07 | 0.004 | –0.08 | 0.006 |
| R Occipital | ||||||
| Age | –0.25** | 0.058 | –0.26*** | 0.063 | –0.26*** | 0.062 |
| SES | 0.10 | 0.010 | –0.17* | 0.028 | –0.16* | 0.023 |
| Race | –0.07 | 0.005 | –0.09 | 0.007 | –0.04 | 0.002 |
| Sex | –0.06 | 0.003 | –0.06 | 0.003 | –0.07 | 0.004 |
| L Occipital | ||||||
| Age | –0.20** | 0.039 | –0.21** | 0.041 | –0.21** | 0.043 |
| SES | 0.10 | 0.009 | –0.12 | 0.014 | –0.17* | 0.025 |
| Race | –0.07 | 0.005 | –0.08 | 0.007 | –0.04 | 0.002 |
| Sex | –0.10 | 0.009 | –0.10 | 0.009 | –0.11 | 0.012 |
SES = socioeconomic status; R = right; L = left. Final models reflect the models following the backward elimination procedure. ∧p = 0.05, *p < 0.05, **p < 0.01, ***p < 0.001. Data reflect standardized regression coefficients (β) and semipartial correlations squared (sr2).