Clinical characteristics of hemophilia A patients and controls.

FVIII∶C was measured by a one-stage clotting assay and expressed as percent of normal pooled plasma (NPP). Fibrin density and platelet aggregate size were measured at the end of a 5 min. flow assay on type I collagen and 2.3 fmol TF/cm2 at 100 s−1. Data is presented as the average and standard deviation of n = 3.
†Categories are based on FVIII∶C where control >50%, mild 5–30%, moderate 1–5%, and severe <1%.