Question to the Department for Work and Pensions:

To ask the Secretary of State for Work and Pensions, what recent estimate she has made of the proportion of claimants of employment support allowance that have a mental illness as their primary impairment.

The information requested is not readily available and to provide it would incur disproportionate cost.

However, information on the number of Employment and Support Allowance claimants by high level medical conditions, including Mental and Behavioural disorders, is published here:

https://stat-xplore.dwp.gov.uk/webapi/jsf/login.xhtml

Guidance for users is available at:

https://stat-xplore.dwp.gov.uk/webapi/online-help/Getting-Started.html