Charlie Norwood Veterans Affairs Medical Center, Augusta, GA, USA. Department of Medicine, J. Harold Harrison M.D. Distinguished University Chair in Rheumatology, Medical College of Georgia, Augusta University, Augusta, GA, USA,. Department of Biostatistics, University of Washington, Seattle, WA, USA. Geriatric Research Education & Clinical Center, Veterans Affairs Health Care System, Minneapolis, MN, USA. Center for Chronic Disease Outcomes Research, Veterans Affairs Health Care System, Minneapolis, MN, USA. Department of Medicine, University of Minnesota, Minneapolis, MN, USA. Division of Epidemiology & Community Health, School of Public Health, University of Minnesota, Minneapolis, MN, USA. Department of Medicine, Medical College of Georgia, Augusta University, Augusta, GA, USA,. Division of Preventive Medicine, School of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA. Department of Clinical and Digital Health Sciences, College of Allied Health Sciences, Augusta University, Augusta, GA, USA. Department of Medicine, University of California-Davis, Sacramento, CA, USA.