Table 3. Hippocampal shrinkage rates by hemisphere and diagnoses at baseline and follow-up.
Diagnosis at Baseline |
Diagnosis at Follow-up |
|||
Hippocampal Contraction ml/year | Left | Right | Left | Right |
Normal (N) | 0.0115 ± 0.0004 (78) | 0.0107 ± 0.0004 (78) | 0.0124 ± 0.0004 (69) | 0.0108 ± 0.0004 (69) |
AD (N) | - | - | 0.015# ± 0.002 (7) | 0.019# ± 0.002 (7) |
MCI (N) | 0.020** ± 0.002 (6) | 0.020** ± 0.001 (6) | 0.016# ± 0.001 (8) | 0.010 ±0.001 (8) |
Results in Model** | ||||
Gender | T = −1.23/p = 0.22 | T = −2.27/p = 0.03 | T = 2.38/p = 0.02 | T = −1.93/p = 0.06 |
Gender x Diagnosis | T = 1.65/p = 0.10 | T = 2.67/p = 0.01 | F = 7.8/ p = 0.001 | F = 4.79/p = 0.01 |
Total dv-negative rate | T = 5.81/p < 0.0001 | T=5.51/p<0.0001 | F=7.1/ p=0.01 | F=24.6/ p<0.0001 |
Diagnosis | T = −4.84/p < 0001 | T =−5.17/ p < 0.0001 | F = 5.7/ p = 0.005 | F = 10.9/ p < 0.0001 |
x: post-hoc p-value < 0.0001; #post-hoc p-value < 0.05; ** Age, interscan interval, education, and TIV were not significant in the model.