b'Mortality by STAT Classification 1July 2014 - June 2018Primary Procedure Number of% Mortality STS National Procedures BenchmarkSTAT CATEGORY 1 96 0% 0.4%STAT CATEGORY 2 129 0.8% 1.5%STAT CATEGORY 3 38 0% 2.3%STAT CATEGORY 4 103 5.8% 6.4%STAT CATEGORY 5 10 0% 14.4%1STS Congenital Heart Surgery National Report Published December 2018, reporting timeframe July 2014June 2018. Table 113|The Heart Center Annual Report 2018 childrens.com/heart|13'