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Brain-age prediction performance from single modalities
| Modality | Number of entered variables | Correlation between age and brain-age (r) | Variance in age explained (R2) | Mean absolute error (years) | Age bias (correlation between age and age-difference) |
|---|---|---|---|---|---|
| T1-weighted | 165 | 0.684 | 0.468 | 4.140 | −0.721 |
| T2-FLAIR | 1 | 0.308 | 0.095 | 5.653 | −0.942 |
| T2∗ | 14 | 0.329 | 0.108 | 5.780 | −0.987 |
| Diffusion-MRI | 675 | 0.730 | 0.533 | 3.897 | −0.638 |
| Task fMRI | 14 | 0.161 | 0.026 | 5.929 | −0.986 |
| Resting-state fMRI | 210 | 0.444 | 0.194 | 5.261 | −0.921 |
