Venous Thromboembolism (VTE) Risk Assessment

This section of the website provides information on the number and proportion of admitted adult patients in England who have been risk assessed for VTE.

Note 1: We will be publishing revisions of 2014/15 data on the 1stMay 2015. If you are interested in revising 2014/15 VTE data, please make a request to  Please let us know which months you would like to revise and your reasons for wanting to do this by 31st March.

Note 2: NHS England’s consultation on the proposed change to publication frequency from monthly to quarterly for NHS England Venous Thromboembolism (VTE) Risk Assessment statistics has now ended. Thank you for your responses, there has been no objections to the proposal. NHS England intends to reduce the frequency of publication from monthly to quarterly with effect from April 2015.
(Providers will still be required to collect data on VTE risk assessments monthly; however, they will not need to submit all three months data until the end of the quarter). Please see the Statistical Notice for further details.
Statistical Notice – Change to VTE publication schedule


The data collection was first made mandatory from June 2010, and data has been published quarterly from the first full quarters data (July-September 2010).

The data collection asks for three items of information:
1. Number of adults admitted as inpatients in the month who have been risk assessed for VTE on admission to hospital using the criteria in the National VTE Risk Assessment Tool
2. Total number of adult inpatients admitted in the month
3. Calculated from (1) and (2), the percentage of adult hospital admissions, admitted within the month assessed for risk of VTE on admission

Trusts are required to upload their data on VTE risk assessment onto Unify2 and signed off no later than 20 working days after the month end.


New nationally-mandated Quality Requirements, with associated financial consequences, have been introduced in relation to VTE assessment (previously a national CQUIN indicator) in the 2014/15 NHS Standard Contract. Technical guidance can be found in the link and documents below:
NHS Standard Contract 2014/15 – Technical Guidance

Guidance on the data revisions policy can be found in the Statistics Code of Practice compliance section:
UNIFY Revisions Policy – October 2014

Data Publications for 2014-15

Data Publications for 2013-14

Data Publications for 2012-13

Data Publications from 2010-11 Q2 to 2011-12 Q4


Contact Us
You can obtain further details about the statistics published in this section or send in your comments by emailing the team at the address below.