1Center for Health Services Research, Vanderbilt University School of Medicine, Nashville, TN.
2Section of Hospital Medicine, Division of General Internal Medicine and Public Health, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN.
3Geriatric Research, Education, and Clinical Center (GRECC) Service, Department of Veterans Affairs Medical Center, Tennessee Valley Healthcare System, Nashville, TN.
4Division of Critical Care, Department of Anesthesiology, Vanderbilt University School of Medicine, Nashville, TN.
5Anesthesia Service, Department of Veterans Affairs Medical Center, Tennessee Valley Healthcare System, Nashville, TN.
6Department of Urology, Vanderbilt University School of Medicine, Nashville, TN.
7Department of Clinical Epidemiology and Biostatistics, Graduate School of Medicine, Osaka University, Osaka, Japan.
8Advanced Medical Emergency and Critical Care Center, Yamaguchi University Hospital, Yamaguchi, Japan.
9Division of Allergy, Pulmonary, and Critical Care Medicine, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN.
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This study was supported, in part, by the National Institutes of Health (Grant AG027472).
Drs. Vasilevskis, Pandharipande, Ely, and Girard received support from the National Institutes of Health (AG040157, HL111111, AG035117, and AG034257). Drs. Pandharipande and Ely also received support from the VA Clinical Science Research and Development Service (VA Career Development Award and VA Merit Review Award, respectively) and Drs. Vasilevskis, Ely, and Girard received support from the Veterans Affairs Tennessee Valley Geriatric Research, Education and Clinical Center (GRECC). Dr. Pandharipande has received honoraria from Hospira, Inc. and Orion Pharma. Dr. Ely has received honoraria from Pfizer, Inc., Eli Lilly and Company, Hospira, Inc., Abbott Laboratories, and Orion Pharma. Dr. Girard has received honoraria from Hospira, Inc. The remaining authors have disclosed that they do not have any potential conflicts of interest.
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