Table 2.

TMF parameter estimates for equation 1B using categorical isoelectric point and density.

Variable	βs	β Parameter Estimate	Standard Error	t Value	Pr > |t|
Intercept	β1	0.120	0.005	22.15	<.0001
Isoelectric High	β2	−0.024	0.012	−2.06	0.0397
Isoelectric Med.	β3	−0.0002	0.011	−0.02	0.9854
Isoelectric Low	β4	0.035	0.017	2.09	0.0372
Ligand OEG	β5	0.007	0.015	0.43	0.6681
Ligand Glc	β6	−0.029	0.017	−1.74	0.0819
Ligand Man	β7	−0.025	0.016	−1.54	0.1253
Density High	β8	−0.064	0.013	−4.92	<.0001
Density Med.	β9	−0.028	0.011	−2.55	0.0111
Density Low**	β10	0	.	.	.
Donor*	β11–22	−0.594 – 0.660	0.058	−6.22 – 10.57	<.0001

^*All donor estimates, standard errors, t values, and probabilities can be seen in the Table S2 in the supplemental.

^**Low density conjugates varied linearly with the control due to no difference between cell response to low density and no ligand groups. Thus, this group had to be removed from the model.