Merrill Thomas, MD University of Missouri-Kansas City School of Medicine, and Saint Luke's Mid America Heart Institute, Kansas City, Missouri.

John A. Spertus, MD, MPH University of Missouri-Kansas City School of Medicine, and Saint Luke's Mid America Heart Institute, Kansas City, Missouri.

Adin-Cristian Andrei, PhD Feinberg School of Medicine, Northwestern University, Chicago, Illinois.

Tingqing Wu, MS Feinberg School of Medicine, Northwestern University, Chicago, Illinois.

Stacy L. Farr, PhD, MPH University of Missouri-Kansas City School of Medicine, and Saint Luke's Mid America Heart Institute, Kansas City, Missouri.

Anna Warzecha, BA Feinberg School of Medicine, Northwestern University, Chicago, Illinois.

Kathleen L. Grady, PhD, RN Feinberg School of Medicine, Northwestern University, Chicago, Illinois.

This work was sponsored by the National Institutes of Health, National Institute on Aging (NIA), Sustaining Quality of Life of the Aged: Heart Transplant or Mechanical Circulatory Support? (SUSTAIN-IT) (R01AG047416, K.L.Grady, primary investigator).

Dr Thomas is supported by the National Heart, Lung, and Blood Institutes of Health under award number T32HL110837; the content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health.

Dr Spertus reports that, relevant to this work, he serves as a consultant for Novartis and owns the copyright to the Kansas City Cardiomyopathy Questionnaire. He also serves as a consultant for Bayer, AstraZeneca, Myokardia, Merck, Amgen, United Healthcare, and Janssen. He has equity in Health Outcomes Sciences and serves on the Board of Directors for Blue Cross-Blue Shield of Kansas City. Dr Grady serves as a consultant to Amgen. The other authors have no conflicts of interest to disclose.

Correspondence Merrill Thomas, MD, Saint Luke's Mid America Heart Institute, 4401 Wornall Road, Kansas City, MO 64111 ([email protected]).

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