Table 6.
Comparison of demographic data and Pad-HVLT-R scores of the HC and aMCI group.
| HC (n = 45) | aMCI (n = 45) | HC vs. aMCI | ||
|---|---|---|---|---|
| Variable | M (SD) | M (SD) | t/χ2 | p |
| Age group | 60.64 (15.04) | 60.76 (14.69) | −0.038 | 0.969 |
| Education | 10.22 (3.60) | 10.37 (4.10) | −0.185 | 0.853 |
| Sex (male/female) | 18/27 | 22/23 | 0.720 | 0.396 |
| Direct | ||||
| Total recall | 22.04 (5.95) | 16.67 (6.74) | 4.012 | <0.001 |
| Short-delayed recall | 7.84 (3.23) | 5.47 (3.16) | 3.529 | 0.001 |
| Long-delayed recall | 7.47 (3.19) | 4.89 (3.26) | 3.795 | <0.001 |
| RDI | 9.31 (2.32) | 7.56 (2.45) | 3.484 | 0.001 |
| Derived | ||||
| SDR percent retained | 0.88 (0.27) | 0.77 (0.39) | 1.677 | 0.097 |
| LDR percent retained | 0.84 (0.32) | 0.67 (0.39) | 2.392 | 0.019 |
| Semantic clustering | 2.02 (0.70) | 1.32 (0.76) | 4.507 | <0.001 |
| Serial clustering | 0.39 (0.34) | 0.41 (0.37) | −0.040c | 0.968 |
| Perseverations | 4.07 (5.01) | 2.53 (5.12) | −2.045c | 0.041 |
| Intrusions errors | 2.96 (4.30) | 2.53 (5.73) | −1.273c | 0.203 |
HC, healthy control; aMCI: amnestic Mild Cognitive Impairment; RDI, recognition discrimination index; SDR percent retained, Short-delayed recall percent retained; LDR percent retained, Long-delayed recall percent retained; cMann-Whitney U-test.