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Andrea E. Siewers
Researcher at Maine Medical Center
Publications - 24
Citations - 11455
Andrea E. Siewers is an academic researcher from Maine Medical Center. The author has contributed to research in topics: Population & Mortality rate. The author has an hindex of 17, co-authored 24 publications receiving 10775 citations.
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Journal ArticleDOI
Hospital Volume and Surgical Mortality in the United States
John D. Birkmeyer,Andrea E. Siewers,Emily Finlayson,Therese A. Stukel,F. Lee Lucas,Ida Batista,H. Gilbert Welch,David E. Wennberg +7 more
TL;DR: Mortality decreased as volume increased for all 14 types of procedures, but the relative importance of volume varied markedly according to the type of procedure.
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Hospital volume and surgical mortality in the United States
TL;DR: In the absence of other information about the quality of surgery at the hospitals near them, Medicare patients undergoing selected cardiovascular or cancer procedures can significantly reduce their risk of operative death by selecting a high-volume hospital.
Journal ArticleDOI
Surgeon volume and operative mortality in the United States.
John D. Birkmeyer,Therese A. Stukel,Andrea E. Siewers,Philip P. Goodney,David E. Wennberg,F. Lee Lucas +5 more
TL;DR: For many procedures, the observed associations between hospital volume and operative mortality are largely mediated by surgeon volume, and patients can often improve their chances of survival substantially, even at high-volume hospitals.
Journal ArticleDOI
Surgeon volume and operative mortality in the United States
John D. Birkmeyer,Therese A. Stukel,Andrea E. Siewers,Philip P. Goodney,David E. Wennberg,F. Lee Lucas +5 more
TL;DR: In this paper, the authors examined the relationship between surgeon volume and operative mortality in eight cardiovascular procedures and found that surgeon volume was inversely related to operative mortality for all eight procedures (P=0.003 for lung resection, P<0.001 for all other procedures).
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Temporal Trends in the Utilization of Diagnostic Testing and Treatments for Cardiovascular Disease in the United States, 1993–2001
TL;DR: Temporal increases in the use of noninvasive and invasive cardiac services are not explained by changes in disease prevalence and have not succeeded in narrowing preexisting treatment differences by gender and race.