Table 3. Multivariable linear regression analysis in Model 1 using variables including salt, protein, and energy intake as a nutritional marker: independent factors of cerebral oxygen saturation.

	Multivariable linear regression
vs. cerebral rSO2	Standardized coefficient	p value
Body mass index	-0.152	0.201
Hb	0.205	0.078
eGFR	0.179	0.118
Na	0.052	0.659
Serum albumin	0.236	0.039 *
Salt intake	-0.166	0.155
Protein intake	0.011	0.923
Energy intake	0.370	0.002 *

*Statistically significant.

Abbreviations: eGFR, estimated glomerular filtration rate

Hb, hemoglobin; rSO₂, regional oxygen saturation.