Table 4.

Estimated contrasts of the pairwise group comparison of SARS-CoV-2 antibody titres 6–8 weeks after 3D.

Contrast	Estimate	SE	p-Value
Controls vs. HD responder patients	2158	3457	0.8071
Controls vs. HD low/non-responder patients	17,386	2606	<0.0001 (*)
HD low/non-responder vs. HD responder patients	−15,228	3173	<0.0001 (*)

Contrast, the two groups that are being compared; Estimate, the estimated difference. All numbers, except for the p-value, are in binding antibody units per ml. SE, standard error; p values < 0.05 were considered significant; (*), significant value.