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Figure 3 Clinical efficacy of aortic stenosis indices. Prediction capability is shown for the clinical objectives of predicting: 1) symptomatic status, 2) critical aortic stenosis (AS), 3) late AS events, 4) early or late AS events in patients with depressed left ventricular function, and 5) any-cause mortality in unoperated patients. Clinical efficacy is assessed by receiver-operator characteristic analysis for populations derived from Group B (see methods section). EF = ejection fraction.
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