TABLE 1.

Scanner manufacturer, field strength, and age range specifications for the five dataset subsets used for training the model. The selection of images used here might not be representative of the entire dataset.

Datasets	Scanner manufacturers				Field strength			Number of subjects	Age range (years)
	GE	PHILIPS	SIEMENS	ELSCENT	1.5 T	2 T	3 T
ADNI3			✓				✓	42	67–70
ICBM	✓	✓		✓	✓	✓	✓	200	19–54
UKBB			✓				✓	200	45–55
PPMI	✓	✓	✓		✓		✓	76	67–70
ABCD	✓	✓	✓				✓	200	9–13

Abbreviations: ABCD, Adolescent Brain Cognitive Development; ADNI, Alzheimer's Disease Neuroimaging Initiative; ICBM, International Consortium for Brain Mapping; PPMI, Parkinson's Progression Markers Initiative; UKBB, UK Biobank.