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: NHS England identified an error in the publication of the VTE Risk Assessment data collection for Quarters 2 and 4 2013/14. Corrected data for these quarters were published on 4th July 2014.
Revised data from April 2013 to January 2014 were published on 2 May 2014, and are now included in the July revision.
The commentary for each quarter has not been revised as the changes from both these revisions have small impact on national figures.
Please also note that the current email address is: The previous email address ( is no longer in use and emails sent to this address may not be received.


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

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.