Table 1.

Characteristics of the study participants

Training data (n = 385)			Evaluating data (n = 507)a
Dataset:	IXI	OASIS	J‐ADNI	J‐ADNI	J‐ADNI	J‐ADNI
Category	HC	HC	HC	sMCI	pMCI	AD
No. of subjects	274	111	146	102	112	147
Females/males	170/104	82/29	78/68	57/45	65/47	84/63
Age (yrs)	63.50 [7.64]	70.86 [10.68]	68.28 [5.61]	73.44 [5.97]	73.62 [5.57]	74.07 [6.57]
MMSE	n/a	29.07 [1.17]	29.11 [1.20]	26.55 [1.81]	26.08 [1.53]	22.55 [1.80]
CDR	n/a	0.00 [0.00]	0.00 [0.00]	0.50 [0.00]	0.50 [0.00]	0.67 [0.23]
ADAS	n/a	n/a	7.40 [4.24]	17.85 [6.08]	22.20 [5.78]	27.42 [5.84]
FAQ	n/a	n/a	0.12 [1.15]	2.51 [2.88]	4.64 [4.78]	10.16 [5.90]

All data are mean [std. dev.] mode.

AD: people with Alzheimer's disease; CDR: clinical dementia rating; HC: healthy control participants; sMCI: stable mild cognitive impairment; pMCI: progressive mild cognitive impairment; MMSE: mini‐mental state examination; FAQ: functional assessment questionnaire; ADAS: alzheimer's disease assessment score; n/a: not available.

^aOnly data at the baseline were used in the evaluation.