Table 4 Cross-validated performance estimates for analyses predicting postnatal and postmenstrual age at scan using offset 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

0.50 ± 0.02

0.31 ± 0.01

0.47 ± 0.02

0.50 ± 0.02

Test R²

0.36 ± 0.09

0.24 ± 0.12

0.32 ± 0.11

0.35 ± 0.13

Train MAE

0.74 ± 0.02

1.83 ± 0.04

0.96 ± 0.02

1.29 ± 0.03

Test MAE

0.83 ± 0.07

1.88 ± 0.26

1.07 ± 0.11

1.42 ± 0.15

  1. Reported in terms of mean R2; and MAE ± SD (in weeks). N = 599 neonates (483 term-born).