What is Risk Adjustment?

Mortality after cardiac surgery depends on the exact operation performed, the underlying state of the heart and the presence of other patient illnesses. If you make comparisons between different hospitals’ or surgeons’ mortality rates, but fail to make adjustments for these factors it is easy to draw the wrong conclusions.

The analyses we undertake in the Society for Cardiothoracic Surgery are based on a European-wide risk adjustment model called the EuroSCORE. This model has been adjusted in turn to make it applicable to today’s practice in the UK.EuroSCORE. This model has been adjusted in turn to make it applicable to today’s practice in the UK.

We have used the following techniques:

Confidence intervals: For more information click here
Adjustment for problems of multiple comparisons between surgeons. For more information click here
Adjustment for biological variation and ‘overdispersion’. For more information click here
For more details about understanding the charts on casemix and mortality outcomes please click here

For more details on the complex methods used please contact www.sctsadmin@scts.org