FIGURE 4.

Correlation of antibody binding to different A antigen subtypes in pre‐transplant sera (timepoint 1). (A) Correlation of IgG binding. Prior to EART there was a significant correlation of IgG to all A‐subtypes (p < .001) but not to αGal. The relationships between binding to A‐II and other A‐subtypes are shown to the left, and between A‐subtypes III, IV, and V to the right. IgG binding to A‐I did not correlate any more closely with binding to other A‐subtypes than with binding to A‐II. (B) Correlation of IgM binding. Prior to EART there was a highly significant correlation of IgM to all A‐subtypes and to αGal (p < .001). The relationship between binding to A‐II and to other A‐subtypes is shown