[1] Yale Sch Med, Dept Emergency Med, 464 Congress St, Ste 260, New Haven, CT 06519 USA
[2] Yale Sch Med, Ctr Outcomes Res & Evaluat, New Haven, CT USA
[3] Univ Wisconsin Madison, Sch Med & Publ Hlth, BerbeeWalsh Dept Emergency Med, Madison, WI USA
[4] Yale Sch Med, Dept Internal Med, Sect Geriatr, New Haven, CT USA
[5] VA Connecticut Healthcare Syst, West Haven, CT USA
[6] NYU, Rory Meyers Coll Nursing, New York, NY USA
[7] NYU, Div Geriatr Med & Palliat Care, Grossman Sch Med, New York, NY USA
[8] Johns Hopkins Univ, Sch Med, Dept Med, Div Geriatr Med & Gerontol, Baltimore, MD USA
[9] Johns Hopkins Bloomberg Sch Publ Hlth, Dept Hlth Policy & Management, Baltimore, MD USA
[10] Johns Hopkins Bloomberg Sch Publ Hlth, Roger C Lipitz Ctr Integrated Hlth Care, Baltimore, MD USA