Treatment and outcomes of left bundle-branch block patients with myocardial infarction who present without chest pain
Michael G. Shlipak, MD, MPH* ,
Alan S. Go, MD ,
Paul D. Frederick, MPH, MBA ,
Judith Malmgren, PhD ,
Hal V. Barron, MD, FACC ||,
John G. Canto, MD, MSPH, FACC¶ for the National Registry of Myocardial Infarction 2 Investigators
* San Francisco VA Medical Center, San Francisco, California, USA
University of California, San Francisco, California, USA
the Northern California Kaiser Division of Research, Oakland, CaliforniaUSA
the University of Washington Clinical Research Coordinating Center, Seattle, Washington, USA
|| the Division of Medical Affairs, Genentech, San Francisco, California, USA
¶ the University of Alabama Medical Center, Birmingham, Alabama, USA

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Figure 1 The association of the absence of chest pain with in-hospital mortality after myocardial infarction in patients with left bundle branch block. The mortality risk associated with the absence of chest pain is calculated in a series of multivariate adjustments. Model 1 is adjusted for differences in patient demographic characteristics and past medical history. Model 2 includes variables from Model 1 and adds severity of illness characteristics. Model 3 adjusts for the above variables, hospital bed assignment and medications and procedures received in-hospital.
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