Who participates?

The Case Mix Programme (CMP) is open to NHS and non-NHS providers in England, Wales and Northern Ireland. All adult, general NHS critical care units participate, along with several specialist units (e.g. Cardiothoracic, Neurosciences) and stand-alone High Dependency Units. A list of participating units is available at the bottom of the page.

Why participate?

The CMP is a world renowned national clinical audit that the NHS England Quality Accounts List recommends all critical care units should participate in.

Benefits of participation include:

  • standardised rules, definitions and extensive quality checking to ensure meaningful benchmarking against peers
  • analysis reports on nationally recognised quality indicators, such as delayed discharges, unit-acquired infections and risk-adjusted mortality (see example report below)
  • highlighting of areas for improvement and successes in the delivery of care
  • an abundance of CMP resources including manuals, webinars, training workshops and a team of dedicated Data Coordinators
  • participation in research studies utilising CMP data
  • attending the CMP Annual Meeting with the opportunity to network with the critical care community

For more information on joining the CMP, please contact us at