Table 1.
Characteristics of sample1.
| Demographics | Total n = 72 |
|---|---|
| Age (mean years + standard deviation) | 69 ± 3 |
| Female, n(%) | 46(64) |
| Education, n(%) | 1(1) some high school |
| 10(14) high school degree | |
| 12(17) some college | |
| 49(68) college degree | |
| Income, n(%) | 1(1) < $15,000 |
| 2(3) $15,000 – $25,000 | |
| 12(17) $25,000 – $50,000 | |
| 17(24) $50,000 – $75,000 | |
| 16(22) $75,000 – $100,000 | |
| 24(33) > $100,000 | |
| Depression, n(%) | 67(93) no |
| 5(7) yes | |
| Plasma nutrients | (uM ± std) |
| Phosphatidylcholine | 2101 ± 400 |
| Psychometrics | (mean ± std) |
| Cognitive flexibility score | 8 ± 2 |
| Volumetric MRI (gray matter thickness) | (mm± std)) |
| Left PFC | 2.39 ± 0.08 |
| Left inferior PFC | 2.38 ± 0.13 |
1Demographics reflect covariates included in analyses. Plasma nutrients, psychometrics, and volumetric MRI reflect variables of interest included in analyses.