Table 3.
Multi-linear regression between OEF and cognition in the whole group (N=65). In all models, OEF was the independent variable, age, sex and education were covariates.
| Dependent variable | 1β±SE for OEF | P-value | 2Corrected P-value |
|---|---|---|---|
| Composite cognitive score | 0.03±0.01 | 0.03 | 3N.A. |
| Processing speed, z score | 0.04±0.02 | 0.01 | 0.04 |
| Episodic memory, z score | 0.02±0.02 | 0.32 | 0.79 |
| Executive function, z score | 0.02±0.01 | 0.25 | 0.69 |
| Language, z score | 0.03±0.01 | 0.045 | 0.17 |
1
β: standardized beta coefficient; SE: standardized error; OEF: oxygen extraction fraction.
2
Corrected P-value: P-value with Bonferroni correction.
3
N.A.: no correction was applied because we only had one composite cognitive score in this study.