Table 3.

Univariate simple regression results for factors associated with low CPB Hct.

Variable	Slope Estimate	SE	p
Sex (male)	3.76789	.73634	<.0001
Hct baseline OR (%)	0.72272	.06387	<.0001
Weight (kg)	0.10401	.02278	<.0001
CPB prime (mL/100)*	0.96210	.26272	.0004
Age (yr)	−0.08900	.03291	.0082
Pre-CPB volume (mL/100)*	−0.14482	.07081	.0438

^*This variable was divided by 100 before fitting the univariate model; therefore, a unit increase for this variable is an increase of 100 mL.