Table 3.

Results of random effect model to predict pressure passivity.

Solutions for fixed effects
Effect	Estimate	Standard error	df	t value	P > |t|
Intercept	−0.5665	0.3132	63	−1.81	0.0753
SHbT	0.001100	0.000147	17,230	7.50	<0.0001
Circulating hemoglobin concentration	−0.1818	0.01308	17,230	−13.90	<0.0001
pCO2	0.01845	0.003055	17,230	6.04	<0.0001
Sedation	0.2705	0.08983	17,230	3.01	0.0026