In Blann et al's study only the subgroup of subjects with myocardial infarction and hypertension or raised cholesterol (and not the subgroup without these risk factors) had higher concentrations of vWFAg than controls. In Table 4 in our paper (British Heart Journal 1991;66:351-5) the results of multivariate Cox regression analysis demonstrate that the association between high concentrations of vWFAg and reinfarction or cardiovascular death was independent of these and other risk factors.