Predicted No. of SSIs - This is the estimated number of SSIs that is predicted to occur if the facility has the same infection rate as the national benchmark.

• If the Observed number of infections > Predicted number of infections, then the facility has a higher rate of infection than the national benchmark
• If the Observed number of infections < Predicted number of infections, then the facility has a lower rate of infection than the national benchmark
• If the Observed number of infections = Predicted number of infections, then the facility has the same rate of infection as the national benchmark.
• NOTE: If the Predicted number of infections is less than 1, then there is not enough data to calculate a SIR.