Anti-ADAMTS13 antibody and ADAMTS13 antigen results for individual patients, comparing those who died and survived. (A) Anti-ADAMTS13 antibody results; (B) ADAMTS13 antigen results. The overlying line shows the median, upper, and lower quartiles for each group. Median anti-ADAMTS13 IgG antibody levels were higher and median ADAMTS13 antigen levels lower in those who died than those who survived.