This graph shows the percentage of patients who survived their operation. This is called the ‘in-hospital survival rate’.
Some consultants do more complicated surgery on patients who are more sick, whilst others do fairly routine surgery. So that we can make fair comparisons between these consultants, the survival rate has been ‘risk adjusted’ to take into account the difficulty of each operation.
Based on the difficulty of the case mix of each consultant, we obtain a predicted value of survival rates. The dot in the graph shows the risk-adjusted survival rate for the consultant you are looking at. The area between the two dotted lines is the range in which the dot will appear if the results are as expected.
For more information on understanding mortality rates, look at the Understanding the graphs page
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