Table 5.

Variables and their coefficients and p-values for simple and adjusted multivariable linear regression models of lactate concentration

Variables	Simple	P	Adjusted	P
	Coefficient		Multivariable Coefficient
Age (years)	0.013	0.305
Sex, male	0.087	0.616
BMI (kg/m2)	0.007	0.749
CCI	0.083	0.272
Diabetes	0.490	0.013	0.343	< 0.001
Hypertension	0.168	0.409
Type of surgery	-0.112	0.250
Hypotension	0.331	0.031	0.222	0.007
LRS (ml·-1·h-1)	0.069	< 0.001	0.491	0.018
BRS (ml·-1·h-1)	-0.064	< 0.001	-0.246	0.230
Surgery duration (min)	0.001	0.780

Note: The multivariable model explained 68.0% of the variation in lactate. BMI: body mass index; CCI: Charlson Co-morbidity index; LRS: sodium lactated Ringer’s solution; BRS: sodium bicarbonated Ringer’s solution.