[1] Univ Colorado, Colorado Sch Publ Hlth, Prevent Med Residency Program, Denver, CO 80202 USA
[2] Univ Calif San Diego, Sch Med, San Diego, CA 92103 USA
[3] Univ Colorado, Colorado Sch Publ Hlth, Dept Biostat & Informat, Denver, CO 80202 USA
[4] Denver Hlth & Hosp Author, Dept Publ Hlth, Denver, CO USA
[5] Denver Hlth & Hosp Author, Dept Community Hlth Serv, Denver, CO USA
[6] Univ Colorado, Colorado Sch Publ Hlth, Dept Epidemiol, Denver, CO 80202 USA