Table 4. Differences of CERAD-K total score (TS) and KART-predicted IQs between the groups.
| CN | MCI | AD | F | p-value | ||||
|---|---|---|---|---|---|---|---|---|
| Mean(SD) | Range | Mean(SD) | Range | Mean(SD) | Range | |||
| KART-FSIQ | 111.26(12.5) | 71.2–127.4 | 110.78(12.0) | 67.6–123.0 | 107.83(15.0) | 64.0–125.4 | 1.04 | .35 |
| KART-VCI | 113.31(12.0) | 76.9–132.3 | 113.51(11.4) | 78.4–129.1 | 110.36(14.2) | 71.5–128.1 | 0.99 | .37 |
| KART-PRI | 108.13(9.0) | 78.9–118.0 | 107.16(8.8) | 71.6–116.3 | 105.45(11.0) | 72.4–117.4 | 1.14 | .32 |
| KART-WMI | 109.12(11.0) | 73.3–122.4 | 108.43(10.7) | 68.1–118.9 | 105.99(13.4) | 66.3–121.0 | 1.08 | .34 |
| KART-PSI | 107.41(8.2) | 81.6–119.1 | 107.29(7.8) | 80.7–116.5 | 105.25(9.8) | 77.3–117.1 | 1.02 | .36 |
| CERAD-K TS I | 69.60(10.6) | 46–95 | 52.04(10.7) | 30–71 | 43.21(10.2) | 21–63 | 102.62 | < .001 |
| CERAD-K TS II | 76.24(12.3) | 47–105 | 54.41(11.8) | 30–78 | 44.14(10.6) | 23–65 | 112.32 | < .001 |
Note. CN, cognitively normal; AD, Alzheimer’s disease dementia; aMCI, amnestic mild cognitive impairment; SD, standard deviation; KART, the Korean Adult Reading Test; KART-FSIQ, KART-predicted Full Scale IQ; KART-VCI, KART-predicted Verbal Comprehension Index; KART-PRI, KART-predicted Perceptual Reasoning Index; KART-WMI, KART-predicted Working Memory Index; KART-PSI, KART-predicted Processing Speed Index; CERAD-K TS I, CERAD-K total score I; CERAD-K TS II, CERAD-K total score II.