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Table 7 Risk stratification for a negative test

From: The clinical use of stress echocardiography in ischemic heart disease

1-year Risk (hard events) Very low (<0.5% year) Low (1-3% year)
Stress Maximal Submaximal
Resting EF >50% <40%
Anti-ischaemic therapy Off On
CFR >2.0 <2.0