[1] Univ Michigan, Ctr Social Epidemiol & Populat Hlth, Dept Epidemiol, Sch Publ Hlth, Ann Arbor, MI USA
[2] Univ Kentucky, Ctr Hlth Equ Transformat, Coll Med, Lexington, KY USA
[3] Univ Michigan, Inst Social Res, Survey Res Ctr, Ann Arbor, MI USA
[4] Univ Colorado Denver, Dept Hlth & Behav Sci, Denver, CO USA
[5] Oakland Univ, Dept Psychol, Rochester, MI USA
[6] Wayne State Univ, Inst Gerontol, Detroit, MI USA
[7] Univ Michigan, Ctr Social Epidemiol & Populat Hlth, Sch Publ Hlth, Dept Epidemiol, 1415 Washington Hts, Ann Arbor, MI 48109 USA