Table 1:
Participant sample characteristics for the three groups (Controls, MCI, and LLD). Columns represent the age at time of first scan (years), participant sex (M, F), the time between the PET and MRS scans (months), Mini-mental state exam (MMSE) score, Hamilton depression rating scale (HDRS) score, grey matter fraction of the ACC, and grey matter fraction of the PCC.
| Controls | MCI | LLD | |
|---|---|---|---|
| Age (years) | 64 ± 8 | 70 ± 8 | 70 ± 7 |
| Sex (M‚F) | 6‚ 7 | 10‚ 3 | 5‚ 4 |
| Time between scans (months) | 9 ± 14 | 3 ± 9 | 5 ± 3 [days] |
| Years of Education | 16 ± 3 | 15 ± 3 | 15 ± 2 |
| MMSE score | 29 ± 1 | 28 ± 2 | 29 ± 1 |
| HDRS | 1 ± 1 | 4 ± 4 | 17 ± 4 |
| GM fraction (ACC) | 0.8 ± 0.1 | 0.8 ± 0.0 | 0.8 ± 0.1 |
| GM Fraction (PCC) | 0.8 ± 0.1 | 0.7 ± 0.0 | 0.7 ± 0.1 |