Table 2.
Comparison of basic demographic characteristics and neuropsychological test results between healthy controls and patients with mild cognitive impairment.
| Characteristic | Healthy controls (n=20) | Patients with MCIa (n=31) | P valueb | ||||
| Basic demographic characteristics | |||||||
|
|
Gender (female), n (%) | 10 (50) | 16 (52) | >.99 | |||
|
|
Age (years), mean (SD) | 70.95 (6.02) | 72.68 (7.75) | >.99 | |||
|
|
Educational level (years), mean (SD) | 12.60 (4.54) | 9.32 (4.98) | .16 | |||
| Neuropsychological tests, mean (SD) | |||||||
|
|
DST: F+Bc (number of correct answers) | 10.60 (1.54) | 8.52 (1.82) | <.001 | |||
|
|
S-K-BNTd (number of correct answers) | 13.05 (1.43) | 11.0 (1.88) | <.001 | |||
|
|
RCFTe (score) | 33.28 (2.44) | 26.42 (6.56) | <.001 | |||
|
|
SVLT-E: DRf (number of correct answers) | 7.15 (2.30) | 2.52 (2.59) | <.001 | |||
|
|
K-TMT-E: Bg (time to completion) | 38.75 (22.93) | 114.65 (103.85) | .02 | |||
aMCI: mild cognitive impairment.
bAdjusted P values after the Bonferroni correction (.05/8=.006).
cDST: F+B: Digit Span Test: Forward+Backward.
dS-K-BNT: Short form of the Korean-Boston Naming Test.
eRCFT: Rey Complex Figure Test.
fSVLT-E: DR: Seoul Verbal Learning Test-Elderly’s version: Delayed Recall.
gK-TMT-E: B: Korean-Train Making Test-Elderly’s version: Part B.