Figure 2.
Rationalization of patient results according to the VWF activity, VWF Ac, ratio of VWF Ac/VWF:antigen (VWF:Ag) and in‐house multimer, IHVWM, result. Patients were group according to VWF Ac and then ratio of VWF activity and VWF:Ag. IHVWM pattern was assessed as normal or reduced high molecular weight multimers (HMWM) when less than 11 multimer triplets were visible. The number of patients with discrepancy between IHVWM and Hydragel 5 multimer method, H5VWM, is indicated. Results from patients with type 2N, type 3 and acquired von Willebrand syndrome (AVWS) were excluded