Given the potential role of ADAMTS13 and VWF in stroke progression and severity, we correlated the levels of ADAMTS13 and the VWF:ADAMTS13 ratios in AIS and TIA patients on day 0 with key demographic and clinical parameters by univariate (Table 2) and multivariate (Table 3) analysis. The gene discussed is VWF; the disease is transient ischemic attack.