Table 4.

Multivariable linear regression model statistics for ESS against regional brain OLE in post‐COVID patients.

	OLE	Age	Sex	Full model fit
Brainstem	ß = −0.16, p = 0.300	ß = 0.44, p = 0.009*	ß = 0.49, p = 0.006*	R 2 adj = 0.168
Deep grey matter	ß = −0.25, p = 0.085	ß = 0.43, p = 0.010*	ß = 0.49, p = 0.004*	R 2 adj = 0.209
Amygdala	ß = −0.14, p = 0.348	ß = 0.46, p = 0.007*	ß = −0.44, p = 0.010*	R 2 adj = 0.163
Nucleus accumbens	ß = −0.27, p = 0.065	ß = 0.47, p = 0.005*	ß = 0.42, p = 0.010*	R 2 adj = 0.218
Hippocampus	ß = −0.16, p = 0.271	ß = 0.47, p = 0.007*	ß = 0.44, p = 0.009*	R 2 adj = 0.171
Thalamus	ß = −0.23, p = 0.115	ß = 0.44, p = 0.009*	ß = 0.48, p = 0.005*	R 2 adj = 0.198
Globus pallidus	ß = −0.33, p = 0.023*	ß = 0.39, p = 0.016*	ß = 0.47, p = 0.004*	R 2 adj   = 0.254*
Putamen	ß = −0.35, p = 0.014*	ß = 0.39, p = 0.015*	ß = 0.43, p = 0.007*	R 2 adj   = 0.271*
Caudate nucleus	ß = −0.14, p = 0.381	ß = 0.42, p = 0.013*	ß = 0.47, p = 0.007*	R 2 adj = 0.161
Total white matter	ß = −0.13, p = 0.366	ß = 0.46, p = 0.008*	ß = 0.46, p = 0.008*	R 2 adj = 0.164
Cortical grey matter	ß = −0.23, p = 0.097	ß = 0.47, p = 0.005*	ß = 0.43, p = 0.010*	R 2 adj = 0.204

Note that p‐values are not adjusted for multiple comparisons for false discovery rate in this table. Bolded text indicates statistically significant associations (*p < 0.05).

ESS, Epworth Sleepiness Scale; OLE, oxygen level estimate.