Normalised right and left hippocampal volumes in the demented twins, their non-demented co-twins, and the controls
| Demented twins (n = 7) | Non-demented co-twins (n = 7) | Controls (n = 10) | p Values | |||||
|---|---|---|---|---|---|---|---|---|
| Hippocampus | Volume | % | Volume | % | Volume | Demented v non-demented1 | Demented v controls2 | Non-demented v controls2 |
| Values are mean (SD). Percentages indicate the proportion of the control mean value. | ||||||||
| 1Statistical method: paired t test. | ||||||||
| 2Statistical method: two sample t test. | ||||||||
| Right | 102.4 (23.8) | 69 | 139.4 (14.6) | 94 | 147.8 (26.1) | 0.002 | 0.002 | 0.45 |
| Left | 90.3 (19.0) | 64 | 127.8 (15.9) | 91 | 140.6 (16.6) | <0.001 | <0.001 | 0.13 |