Anemia and Mortality in Heart Failure PatientsA Systematic Review and Meta-Analysis
Hessel F. Groenveld, MD*,
James L. Januzzi, MD, FACC ,
Kevin Damman, MD*,
Jan van Wijngaarden, MD, PhD ,
Hans L. Hillege, MD, PhD*,
Dirk J. van Veldhuisen, MD, PhD, FACC* and
Peter van der Meer, MD, PhD ,*
* Department of Cardiology, University Medical Center Groningen, Groningen, the Netherlands
Division of Cardiology, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
Department of Cardiology, Deventer Hospital, Deventer, the Netherlands

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Figure 4 Relationship Between Baseline Hemoglobin and Annual Mortality
The area of each circle is proportional to the sample size in each cohort. The center line shows the estimated mortality risk per year of lower baseline Hb values on a continuous scale. The dotted lines represent the 95% confidence intervals.
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