Table 1 Issues and recommendations

From: Current challenges and future directions for brain age prediction in children and adolescents

1. BAG interpretation

Use longitudinal data to capture BAG stability and dynamics

2. Model training

Ensure diverse, representative samples with sufficient power

3. Study design

Prioritize longitudinal designs

4. Model performance and specificity

Report multiple fit metrics for comparability and weight/features used

5. Nonlinearity

Address nonmonotonic and nonlinear trends

6. Corrections and other biases

Address site/scanner effects and adjust for biases