TABLE 3.

Outputs from the brain age pipeline: corrected brain age and BPAD for the HC_train, HC_test and MS_test datasets

Dataset	HC_train	HC_test	MS_test
Source	Public	Brussels	Brussels	Greifswald	Total
N	1673	50	97	104	201
Brain age (mean ± SD)	41.9 ± 21.9†	46.1 ± 16.8	61.8 ± 16.6	62.6 ± 22.9	62.2 ± 20.1
BPAD (mean ± SD)	0 ± 10.0†	−1.9 ± 9.7	13.7 ± 14.7	19.5 ± 16.0	16.7 ± 15.6

Note: The dagger (†) indicates that these values were obtained by means of 10‐fold cross‐validation.

Abbreviation: BPAD, brain‐predicted age difference.