ADAMTS13 and ischemic stroke: In univariate analysis, ADAMTS13 activity during admission was associated with platelet values at the same time point (r = 0.12, p = 0.01) and VWF: Ag levels were associated with age (r = 0.439, p = 0.04), previous ischemic stroke (r = 0.9176, p = 0.031), and glucose levels (r = 0.64, p = 0.049).