Table 2.
Standardized Parameter Estimates of Covariates Effect on Magnetic Susceptibility Values in the ROIs.
| ROI | Age (β1) | Sex (β2) | R2 (Age, Sex) | R2 (Age) | Cohen's f2 (Age) |
|---|---|---|---|---|---|
| Cd | .613 (.050)*** | −.011 (.063) | .375 (.061)*** | .375 (.061)*** | 0.602 |
| Pt | .716 (.038)*** | −.030 (.054) | .512 (.054)*** | .511 (.054)*** | 1.044 |
| Sn | .442 (.063)*** | −.183 (.070)** | .220 (.058)*** | .188 (.055)** | 0.232 |
| Rn | .507 (.055)*** | −.115 (.064) | .264 (.056)*** | .252 (.056)*** | 0.336 |
| Gp | −.038 (.077) | −.004 (.077) | .001 (.006) | .001 (.006) | 0.001 |
| Pul | .221 (.073)* | −.063 (.073) | .051 (.033) | .047 (.032) | 0.049 |
| Th | .063 (.079) | −.034 (.079) | .005 (.011) | .004 (.010) | 0.004 |
| Dn | .136 (.119) | .066 (.120) | .024 (.037) | .040 (.049) | 0.042 |
Note. The standard errors of the parameter estimates are presented within the parentheses. Cd = caudate nucleus, Pt = putamen, Sn = substantia nigra, Rn = red nucleus, Gp = globus pallidus, Dn = dentate nucleus, Th = thalamus, and Pul = pulvinar; Sex (0 = man, 1 = woman); Age in years; R2 = Proportion of variance. Cohen's f2 = magnitude of the effect (effect size). All significances are Bonferroni-adjusted (α′ = .016)
***
p< .000
**
p< .01
*
p< .016.