Association of body mass index with amnestic and non-amnestic mild cognitive impairment risk in elderly

BMC Psychiatry

Table 2 Scores of neuropsychologic examination in patients with mild cognitive impairment and the controls with normal cognitive function in the study

	aMCI ^a (n = 240)	naMCI ^a (n = 240)	Control (n = 480)	P value ^c
MMSE (mean ± SD) ^a
Total at baseline	28.0 ± 1.1	28.1 ± 1.1	28.0 ± 1.1	0.313
Underweight at baseline	27.7 ± 1.3	27.2 ± 0.7	27.9 ± 1.0	0.640
Normal weight at baseline	28.0 ± 1.2	28.1 ± 1.2	28.0 ± 1.1	0.765
Overweight at baseline	27.9 ± 1.0	28.4 ± 1.1	28.2 ± 1.2	0.080
Obese at baseline	27.9 ± 1.1	27.9 ± 1.1	28.0 ± 1.1	0.881
Total on admission	24.1 ± 1.2 *	24.1 ± 1.1 *	28.1 ± 1.2	<0.001
P value ^b	<0.001	<0.001	0.672
MoCA (mean ± SD) ^a
Total at baseline	28.4 ± 1.1	28.5 ± 1.1	28.4 ± 1.1	0.529
Underweight at baseline	28.6 ± 1.3	28.7 ± 1.4	28.4 ± 1.0	0.872
Normal weight at baseline	28.4 ± 1.1	28.5 ± 1.1	28.4 ± 1.1	0.684
Overweight at baseline	28.3 ± 1.1	28.4 ± 1.2	28.4 ± 1.2	0.835
Obese at baseline	28.4 ± 1.1	28.6 ± 1.1	28.4 ± 1.1	0.481
Total on admission	24.4 ± 1.1 *	24.4 ± 1.1 *	28.4 ± 1.1	<0.001
P value ^b	<0.001	<0.001	0.690

^a MMSE Mini-Mental State Examination, MoCA Montreal Cognitive Assessment, SD standard deviation, aMCI amnestic mild cognitive impairment, naMCI non-amnestic mild cognitive impairment
^b Difference of the scores between total at baseline and total on admission was determined by independent sample t test. If a P value < 0.05, it was considered significant
^c Difference of the scores among aMCI, naMCI and control groups was determined by one-way variance analysis (ANOVA) with Duncan’s post hoc test. If a P value < 0.05, it was considered significant. * Compared with control, P < 0.05

ISSN: 1471-244X