Table 6 Cross-validated performance estimates for analyses predicting postnatal and postmenstrual age at scan using both offset and exponent features
From: Aperiodic parameters of the fMRI power spectrum associate with preterm birth and neonatal age
Term-born postnatal | Full sample postnatal | Term-born postmenstrual | Full sample postmenstrual | |
|---|---|---|---|---|
Train R² | 0.57 ± 0.03 | 0.32 ± 0.01 | 0.57 ± 0.05 | 0.67 ± 0.02 |
Test R² | 0.40 ± 0.09 | 0.24 ± 0.12 | 0.35 ± 0.12 | 0.41 ± 0.15 |
Train MAE | 0.68 ± 0.03 | 1.81 ± 0.04 | 0.86 ± 0.05 | 1.04 ± 0.03 |
Test MAE | 0.79 ± 0.07 | 1.87 ± 0.26 | 1.04 ± 0.11 | 1.32 ± 0.16 |
