Performance of the thrombolysis in myocardial infarction risk index in the National Registry of Myocardial Infarction-3 and -4
A simple index that predicts mortality in ST-segment elevation myocardial infarction
Stephen D. Wiviott, MD*, ,*,
David A. Morrow, MD, MPH*, ,
Paul D. Frederick, MPH, MBA ,
Robert P. Giugliano, SM, MD*, ,
C.Michael Gibson, MS, MD*, ,
Carolyn H. McCabe, BS*, ,
Christopher P. Cannon, MD*, ,
Elliott M. Antman, MD*, and
Eugene Braunwald, MD*,
* TIMI Study Group
Cardiovascular Division, Brigham and Women's Hospital, Boston, Massachusetts, USA
Ovation Research, Seattle, Washington, USA
Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA

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Figure 1 Distribution of patients (%) in risk score categories. Lines with diamonds = Intravenous nPA for Treatment of Infarcting Myocardium Early (InTIME-II) trial; lines with circles = ST-segment elevation myocardial infarction (STEMI)-reperfusion therapy (RT); and lines with triangles = STEMIno RT.
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Figure 2 (A) Mortality (%) versus risk index in National Registry of Myocardial Infarction (NRMI) patients with ST-segment elevation myocardial infarction (STEMI). HR = heart rate; SBP = systolic blood pressure. (B) Risk index categories versus mortality in Intravenous nPA for Treatment of Infarcting Myocardium Early (InTIME-II) trial (open bars) versus NRMI STEMI-reperfusion therapy (solid bars).
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