[1] Univ Washington, Cardiovasc Hlth Res Unit, Dept Med, Seattle, WA 98101 USA
[2] Univ Washington, Cardiovasc Hlth Res Unit, Dept Epidemiol, Seattle, WA 98101 USA
[3] Univ Washington, Cardiovasc Hlth Res Unit, Dept Hlth Serv, Seattle, WA 98101 USA
[4] Grp Hlth Cooperat Puget Sound, Ctr Hlth Studies, Seattle, WA 98101 USA
[5] Cedars Sinai Med Ctr, Div Endocrinol Diabet & Metab, Inst Med Genet, Los Angeles, CA 90048 USA
[6] Univ Calif Los Angeles, Dept Med, David Geffen Sch Med, Los Angeles, CA USA