[1] Univ Michigan, Sch Publ Hlth, Dept Environm Hlth Sci, Ann Arbor, MI 48109 USA
[2] Univ Michigan, Sch Publ Hlth, Risk Sci Ctr, Ann Arbor, MI 48109 USA
[3] Univ Michigan, Sch Publ Hlth, Dept Biostat, Ann Arbor, MI 48109 USA
[4] Univ Michigan, Inst Social Res, Survey Res Ctr, Ann Arbor, MI 48109 USA
[5] Univ Michigan, Coll Engn, Dept Civil & Environm Engn, Ann Arbor, MI 48109 USA
[6] Univ Nebraska, Gallup Res Ctr, Survey Res & Methodol Program, Lincoln, NE USA
[7] Vista Analyt Lab, El Dorado Hills, CA USA