VWF and transient ischemic attack: Additionally, ADAMTS 13 activity [65.6% (48.2–100) versus 77.5% (20.4–100), p = 0.877) and VWF: Ag levels [245.8% (125.9–470) versus 227.3% (131.6–430), p = 0.604] were not statistically different between patients with TIA and the rest of study participants.