The Takeda Three Colors Combination Test: A Screening Test for Detection of Very Mild Alzheimer’s Disease

Table 2

The results of the TTCC and the reverse-backward testing.

Group	TTCC		Backward 3-digit span		Backward 4-digit span
	Correct response	Incorrect response	Correct response	Incorrect response	Correct response	Incorrect response
Very mild AD	13	42	47	8	22	33
aMCI	24	21	43	2	19	26
Control	45	9	49	5	30	24