ADAMTS13 and Shock: As shown in Table 2, among the 72 patients with septic shock, 28 (39%) patients had no DIC and an ADAMTS activity above the median (group 1); 33 (46%) patients had either DIC (n = 8) or an ADAMTS13 activity below the median (n = 25) (group 2), and 11 (15%) patients had both DIC and an ADAMTS13 activity below the median (group 3).