VWF and Thromboembolism: Patients with TE had lower ADAMTS13 (44.5 IU/dL vs 62.7 IU/dL, p=0.009) and a trend towards higher vWF/ADAMTS13 ratios in patients with thromboembolism (12.0 vs 5.8, p=0.05), and was statistically not significant (Figure 1).