Researchers analysed 68,183 patients in 358 hospitals across 32 countries and assessed VTE risk using hospital charts and US guidelines.
Using these criteria 51.8% were at risk of VTE. However, there were marked differences between countries in the percentage receiving prophylaxis. Just 37% of UK medical and 74% of surgical patients received prophylaxis, compared with 70% and 92% in Germany.
The Lancet (2008) 371: 387–394