Pearson’s Product-Moment Correlations Between Age and Magnetization Transfer Ratio Measurements for Gray Matter and White Matter
| Measurements | Gray Matter | White Matter | ||
|---|---|---|---|---|
| Correlation | P Value | Correlation | P Value | |
| Mean (%) | −0.61 | <.0001 | −0.58 | <.0001 |
| Median (%) | −0.47 | .0004 | −0.47 | .0004 |
| First Quartile (%) | −0.68 | <.0001 | −0.63 | <.0001 |
| Third Quartile (%) | 0.02 | .90 | −0.25 | .07 |
| Peak Loc (%) | 0.20 | .16 | −0.24 | .08 |
| Peak HT (×10−3) | −0.59 | <.0001 | −0.57 | <.0001 |
Note.—Peak Loc indicates peak location and Peak HT, normalized peak height of magnetization transfer ratio histogram.