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. 2021 Jan 11;11:356. doi: 10.1038/s41598-020-78289-z

Table 2.

Demographics and clinical characteristics.

Parameters NC MCI Dementia Overall F test
P value Post-hoc
Age 69.1 ± 6.6 71.3 ± 9.0 76.2 ± 7.2 P < .001 a < c
Sex (M/F) 3/12 7/4 3/9
Education 8.4 ± 5.3 8.7 ± 4.3 9.8 ± 5.6 P = .78
Disease duration (year) 0 1.7 ± 1.8 3.0 ± 2.2 P < .001 a < b, a < c
K-MMSE 28.5 ± 1.5 25.5 ± 1.9 17.8 ± 3.8 P < .001 a < b, a < c, b < c
CDR 0.2 ± 0.3 0.5 ± 0.0 1.2 ± 0.4 P < .001 a < b, a < c, b < c
GDS 1.5 ± 0.5 3.3 ± 0.5 4.7 ± 0.5 P < .001 a < b, a < c, b < c
B-ADL 19.9 ± 0.3 19.4 ± 1.1 18.9 ± 1.9 P = .12
I-ADL 0.0 ± 0.0 0.4 ± 0.6 1.4 ± 0.7 P < .001 a < b, a < c, b < c

Mean ± standard deviations.

NC normal controls, MCI mild cognitive impairment, dementia: clinically demented peoples, K-MMSE Korean Mini-Mental State Examination, CDR clinical dementia rating, GDS global deterioration scale, B-ADL Barthel ADL index , I-ADL instrumental ADL index. Lowercase letters in the ‘post-hoc’ column refer to groups (a = NC, b = MCI, c = Dementia).