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. Author manuscript; available in PMC: 2023 Feb 28.
Published in final edited form as: J Magn Reson Imaging. 2020 Jun 21;52(6):1829–1837. doi: 10.1002/jmri.27264

Table 4.

Multi-linear regression models between OEF and cognition in the low-VRS subgroup (N=44). 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 0.04±0.01 0.002 3N.A.
Processing speed, z score 0.07±0.02 0.0003 0.001
Episodic memory, z score 0.02±0.02 0.17 0.54
Executive function, z score 0.03±0.01 0.02 0.10
Language, z score 0.03±0.01 0.07 0.24
1

β: standardized beta coefficient; SE: standardized error; OEF: oxygen extraction fraction, corrected for EtCO2.

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.