[1] VA Providence Healthcare Syst, Ctr Innovat Long Term Serv & Supports LTSS COIN, Providence, RI USA
[2] Brown Univ, Dept Family Med, Warren Alpert Med Sch, Providence, RI 02912 USA
[3] Brown Univ, Sch Publ Hlth, Dept Hlth Serv Policy & Practice, Providence, RI 02912 USA
[4] Univ Michigan, Sch Publ Hlth, Dept Hlth Behav & Hlth Educ, 1415 Washington Hts,SPH 1,Room 3810, Ann Arbor, MI 48109 USA
[5] Univ Michigan, Dept Biostat, Sch Publ Hlth, Ann Arbor, MI 48109 USA