Table 2.
Memory performance of the 3 groups
| HC (mean, SD) | MCI HEF (mean, SD) | MCI LEF (mean, SD) | Statistical comparison | Cohen's d | |
| Modified LM I | 13.85 (3.48)a | 8.02 (3.02) | 6.57 (3.12)b | F2,568 = 93.26, P < 0.001 | 0.28 |
| Modified LM II | 13.03 (3.58)a | 4.35 (2.77) | 3.55 (2.53) | F2,568 = 234.77, P < 0.001 | 0.15 |
| LM retention | 0.96 (0.25)a | 0.52 (0.32) | 0.57 (0.49) | F2,568 = 44.11, P < 0.001 | −0.06 |
| AVLT total | 43.36 (9.11)a | 33.80 (9.68) | 28.79 (7.80)b | F2,568 = 41.83, P < 0.001 | 0.43 |
| AVLT SD recall | 8.16 (3.40)a | 4.37 (3.62) | 3.49 (2.56) | F2,568 = 28.50, P < 0.001 | 0.19 |
| AVLT LD recall | 7.43 (3.70)a | 3.55 (3.63) | 2.36 (2.95)b | F2,568 = 30.18, P < 0.001 | 0.27 |
| AVLT disc (%) | 90.29 (9.74)a | 77.65 (14.85) | 74.10 (14.85) | F2,568 = 19.40, P < 0.001 | 0.22 |
Note: SD, standard deviation. Statistical comparison refers to the results of overall group comparison, controlling for age, gender, estimated VIQ, and CDR-SB. AVLT SD = AVLT short delay; AVLT LD = AVLT long delay; AVLT disc = AVLT discriminability on the recognition task.
a
The HC group was significantly different (P < 0.001) from the 2 MCI groups; and Cohen's d was based on the MCI HEF and MCI LEF comparisons.
b
Significant difference between the MCI HEF group versus the LEF group (P < 0.05).