STAT category is the STS Risk Assessment Scale. Higher numbers are higher risk.
The table below follows the STS definitions for surgical complexity based on empirical data from the national data warehouse. References to
the STS methodology and definitions may be found here. Operative
mortality is defined as in hospital or 30 day mortality. Only operations with an STS STAT risk score of 1 or greater are included in the
analysis. STAT is a risk stratification method used by the STS and is based on operation type only, with a higher STAT score indicating an
operation with a greater risk of mortality. Minor operations are excluded from the data below.
Click here to compare outcomes to the STS 4 year analysis and surgeon specific outcomes