Table 1.

Demographics and basic clinical information on training and test data set including healthy controls (HC), patients with mild cognitive impairment or dementia due to Alzheimer’s disease (AD), patients with depression (DEP), frontotemporal dementia (FTD), or Lewy body dementia (LBD)

	Diagnostic group	Group size (female)	Mean age [y]±1 SD	Mean MMSE±1 SD	Relapsing depression
TEST	AD	28 (16)	69.3±10.4	24.3±2.5	n.a.
	DEP	37 (21)	72.3±6.3	27.3±3.4 (n = 26)	18
TRAIN	AD	360 (178)	75.2±7.8	23.1±2.0	n.a.
	DEP	24 (16)	70.4±5.0	n.a.	15
	FTD	39 (19)	58.6±6.4	24.5±3.8	n.a.
	LBD	23 (7)	73.4±4.6	22.7±3.5	n.a.
	HC	586 (299)	74.7±5.8	29.0±1.2	n.a.

Note. The mini-mental state examination score (MMSE) from patients with depression was available only from 26 subjects of the test set. Healthy controls were used to correct for confounding effects of sex, age, and total intracranial volume.