In 2009, the Department of Health launched a National VTE Prevention Programme with the goal of reducing avoidable death, disability, and chronic ill health from HAT. At the centre of the programme was VTE risk assessment of adult patients upon hospital admission, coupled with appropriate prophylaxis of those at risk. The national average for risk assessment now exceeds 95% and data are beginning to show the positive impact VTE risk assessment has had in reducing the incidence of HAT  and reducing VTE-related population mortality .
At Kings College Hospital, London, the multidisciplinary thrombosis team launched mandatory documented VTE risk assessment and updated thromboprophylaxis guidance, followed by root cause analysis of each HAT.
This study demonstrated the efficacy of this systematic approach to VTE prevention in reducing the incidence of HAT . The introduction of mandatory VTE risk assessment led to a 12% reduction in the incidence of HAT following sustained risk assessment rates of 90% or more.
This retrospective database study used data from the Health and Social Care Information Centre and Office of National Statistics to investigate possible associations between the introduction of the compulsory national VTE risk assessment tool in England in 2010 and patient outcomes . This study found a reduction in VTE-related secondary diagnoses and readmissions among adults admitted to hospital, and a reduction in VTE-related population mortality.