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. Author manuscript; available in PMC: 2016 Jan 1.
Published in final edited form as: Am J Cardiol. 2014 Oct 16;115(1):118–124. doi: 10.1016/j.amjcard.2014.09.054

Figure 4. Mean age at PVR (2004-2012) by center.

Figure 4

This bar graph depicts the mean age at PVR across the 35 PHIS centers meeting inclusion criteria for this study. Test for heterogeneity in age between centers demonstrated significant heterogeneity in age at PVR by center mixed effects model (p<0.001).