Country Reference No. of Patients Type 1 (%) Type 2 (%) Type 3 (%) South Australia Rodgers,et al. [50]   52 44 5 South Africa Meiring,et al.[51]   38 58 4 Australia Favaloro[52] 1832  83.9 16.1 1.5 Italy Federici, et al. [53]   55 40 5 USA Werner, et al.[33] 600       South GDR Lanke, et al.[27] 111 76 12 12 Sweden Nilsson [5] 106 families 70 10 20 Howard,et al. [7] 116 71 23 6 Jordan Awidi[54] 65 59 29.5 11.5 India Trasi, et al.[4] 796 18 19 60

Table 1: Frequency of different sub types of VWD obtained from various studies.