In the Nature article they talk about using the combined analysis from multiple EEGs at different ages to increase accuracy. Also this: The accuracy of the HR

In the Nature article they talk about using the combined analysis from multiple EEGs at different ages to increase accuracy. Also this: The accuracy of the HRA− outcome predictions was better at younger ages (3 to 9 months), then dipped in accuracy starting at 12 months. https://www.nature.com/articles/s41598-018-24318-x https://www.nature.com/articles/s41598-018-24318-x