TABLE 2.

Comparison of the neuropsychological test scores between aMCI and naMCI.

Cognition	Test		aMCI	naMCI	p
Attention	Digit span test
	Forward		5.80 ± 1.10	6.45 ± 1.47	0.087
	Backward		3.47 ± 0.57	3.64 ± 1.26	0.560
Language	K-BNT-15		11.03 ± 3.01	13.95 ± 1.62	<0.001
Visuospatial function	Rey complex figure test
	Score		32.00 ± 4.50	32.61 ± 3.91	0.610
	Time		304.57 ± 135.19	236.59 ± 129.31	0.074
Memory	Seoul verbal learning test
	Immediate recall		13.73 ± 2.92	18.68 ± 5.22	<0.001
	Delayed recall		1.00 ± 1.49	5.50 ± 1.54	<0.001
	Rey complex figure test
	Immediate recall		6.22 ± 5.50	13.09 ± 7.62	<0.001
	Delayed recall		5.62 ± 6.59	12.36 ± 6.99	0.001
Executive function	Semantic verbal fluency		12.40 ± 4.11	16.16 ± 3.38	0.001
	Phonemic verbal fluency		5.02 ± 2.55	6.73 ± 4.20	0.101
	Color word stroop test
	Word reading	Correct response	109.80 ± 7.17	110.91 ± 2.51	0.491
		Time	84.90 ± 19.60	82.18 ± 24.14	0.656
		Time per item	0.78 ± 0.22	0.74 ± 0.23	0.551
	Color reading	Correct response	62.30 ± 28.55	80.64 ± 22.14	0.015
		Time	118.67 ± 5.88	118.73 ± 5.54	0.970
		Time per item	3.72 ± 8.13	1.51 ± 0.41	0.149

aMCI, amnestic mild cognitive impairment; naMCI, non-amnestic mild cognitive impairment; K-BNT-15, the 15-item Korean version of the Boston Naming Test.