Performance of a Claims-Based Frailty Proxy Using Varying Frailty Ascertainment Lookback Windows

*Department of Epidemiology and Prevention, Division of Public Health Sciences, Wake Forest University School of Medicine, Winston-Salem, NC

†Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC

‡Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC

§Marcus Institute for Aging Research, Hebrew SeniorLife, Harvard Medical School, Roslindale, MA

∥Department of Medicine, Division of Gerontology, Beth Israel Deaconess Medical Center, Brookline, MA

¶Department of Medicine, Division of Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC

#Department of Physical Medicine and Rehabilitation, School of Medicine, University of North Carolina, Chapel Hill, NC

E.D. was supported by the Cancer Care Quality Training Program at the Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill (grant T32CA116339) during the time of analysis. D.H.K. is supported by NIA grant K24AG073527. This work was supported by NIA grant R01AG056479 and a pilot grant through NIA grant P30AG066615.​

T.S. receives salary support from the Center for Pharmacoepidemiology (current members: GlaxoSmithKline, UCB BioSciences, Takeda, AbbVie, Boehringer Ingelheim, As tellas, and Sarepta) and from a generous contribution from Dr. Nancy A. Dreyer to the Department of Epidemiology, University of North Carolina at Chapel Hill. T.S. does not accept personal compensation of any kind from any pharmaceutical company. He owns stock in Novartis, Roche, and Novo Nordisk. J.L.L. receives research support from Roche to the University of North Carolina; her spouse was formerly employed by GlaxoSmithKline and previously owned stock in the company. K.R-H. receives research support unrelated to this work from Pfizer Global Medical Foundation to the University of North Carolina. D.H.K. received personal fees from Alosa Health and VillageMD for unrelated work. The remaining authors, J.K.E., K.R.F., and E.D.D., declare no conflicts of interest.

Correspondence to: Emilie Duchesneau, PhD, MSPH, Department of Epidemiology and Prevention, Division of Public Health Sciences, Wake Forest University School of Medicine, 525 Vine Street, Suite 510, Winston-Salem, NC 27101. E-mail: [email protected].

Supplemental Digital Content is available for this article. Direct URL citations are provided in the HTML and PDF versions of this article on the journal’s website, www.lww-medicalcare.com.

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