Table 2.
Results of the univariate linear correlations (given for cortical gray and white matter combined as well as separately).
| Included specimens | Dependent variable | Independent variable | r | p | Regression equation |
|---|---|---|---|---|---|
| All regions combined | R2* | Iron concentration | 0.37 | < 0.01 | y = 22.38 + 0.12x |
| R2* | MTR | 0.57 | < 0.001 | y = 10.88 + 52.68x | |
| Phase shift | Iron concentration | − 0.14 | 0.33 | – | |
| Phase shift | MTR | − 0.43 | < 0.005 | y = 1.78 − 5.89x | |
| MTR | Iron concentration | 0.13 | 0.35 | – | |
| Cortical gray matter | R2* | Iron concentration | 0.42 | < 0.05 | y = 21.18 + 0.12x |
| R2* | MTR | 0.38 | 0.07 | – | |
| Phase shift | Iron concentration | 0.25 | 0.24 | – | |
| Phase shift | MTR | 0.28 | 0.18 | – | |
| MTR | Iron concentration | 0.01 | 0.99 | – | |
| White matter | R2* | Iron concentration | − 0.06 | 0.77 | – |
| R2* | MTR | 0.21 | 0.32 | – | |
| Phase shift | Iron concentration | − 0.17 | 0.40 | – | |
| Phase shift | MTR | 0.12 | 0.59 | – | |
| MTR | Iron concentration | − 0.47 | < 0.02 | y = 38.59 − 0.142x |
p = p-value, r = Pearson regression coefficient.
Significant results are given in bold.