[1] Univ Utah, Spencer Fox Eccles Sch Med, Dept Populat Hlth Sci, Salt Lake City, UT USA
[2] Middlesex Community Coll, Dept Social & Behav Sci, Educ & Publ Serv, Middletown, CT USA
[3] Univ Colorado, Sch Med, Div Cardiol, Aurora, CO USA
[4] VA Eastern Colorado, Ctr Innovat COIN, Aurora, CO USA
[5] Univ Iowa, Carver Coll Med, Dept Internal Med, Iowa City, IA USA
[6] Univ Utah, Coll Social & Behav Sci, Dept Sociol, Salt Lake City, UT USA
[7] Salt Lake City VA Informat Decis Enhancement & Ana, Salt Lake City, UT USA
[8] VA Salt Lake City Hlth Care Syst, Geriatr Res Educ & Clin Ctr GRECC, Salt Lake City, UT USA
[9] Univ Utah, Dept Internal Med, Div Geriatr, Salt Lake City, UT USA
[10] Univ Utah, Dept Biomed Informat, Salt Lake City, UT USA
[11] UCL, Dept Appl Hlth Res, London, England
[12] Univ Utah, Spencer Fox Eccles Sch Med, 295 Chipeta Way, Salt Lake City, UT 84108 USA