Table 1.
Characteristics of Val/Val and Met carriers
| Variables | Val/Val carriers (n = 79) | Met carriers (n = 28) | t/χ2 values | p values |
|---|---|---|---|---|
| Age (years) | 63.5 ± 6.3 | 63.2 ± 6.5 | 0.2 | n.s. |
| Male sex (%) | 78.4 | 75 | 0.14 | n.s. |
| Education (years) | 15.8 ± 4.0 | 14.5 ± 2.8 | 1.8 | n.s. |
| Body mass index (kg/m2) | 27.0 ± 6.0 | 27.7 ± 3.9 | −0.5 | n.s. |
| Vascular Burden Index | 1.3 ± 1.3 | 1.5 ± 1.3 | −0.7 | n.s. |
| Beck Depression Inventory | 7.2 ± 5.3 | 5.9 ± 6.6 | 1.0 | n.s. |
| Beck Anxiety Inventory | 4.6 ± 4.4 | 4.2 ± 4.8 | 0.4 | n.s. |
| Pittsburgh Sleep Quality Index | 5.0 ± 3.2 | 5.7 ± 3.7 | −1.0 | n.s. |
| Epworth Sleepiness Scale | 7.9 ± 4.7 | 9.0 ± 6.0 | −1.0 | n.s. |
| Insomnia Severity Index | 7.0 ± 5.2 | 8.5 ± 5.8 | −1.2 | n.s. |
| Self-evaluation Questionnaire | 1.5 ± 1.0 | 1.7 ± 1.0 | −0.5 | n.s. |
| Cognitive Failure Questionnaire | 27.8 ± 12.2 | 30.0 ± 13.7 | −0.8 | n.s. |
| Right hippocampal volume (mm3) | 3924.2 ± 456.1 | 4061.8 ± 413.1 | −1.1 | n.s. |
| Left hippocampal volume (mm3) | 3736.2 ± 442.3 | 3890.9 ± 351.0 | −1.4 | n.s. |
| APOE (% with ε 4) | 15 | 25 | 1.36 | n.s. |
Values are reported as the mean ± SD, unless otherwise indicated. n.s., not significant.