Comparison of hemostatic markers among groups at presentation demonstrated significant differences between groups. (A) VWF:Ag. (B) VWF:Ac. (C) FVIII. (D) ADAMTS13Ac. IS demonstrates the highest median VWF:Ag (196.9IU/dl), VWF:Ac (188.8IU/dL) and FVIII (178.6IU/dL), followed by TIA (VWF:Ag 167.8, VWF:Ac 159.8, FVIII 149.7 IU/dL) and controls (VWF:Ag 160.1, VWF:Ac 140.4, FVIII 142.6IU/dL). The reverse trend was seen for ADAMTS13Ac, as illustrated in panel D (IS median 86.0, TIA 94.0, controls 95.6IU/dL). KW, Kruskal-Wallis.