[1] Univ South Carolina, Arnold Sch Publ Hlth, Dept Hlth Promot Educ & Behav, 915 Greene St, Columbia, SC 29208 USA
[2] Univ South Carolina, South Carolina SmartState Ctr Healthcare Qual, Arnold Sch Publ Hlth, Columbia, SC USA
[3] Univ South Carolina, Arnold Sch Publ Hlth, Dept Epidemiol & Biostat, Columbia, SC USA
[4] Univ South Carolina, Rural & Minor Hlth Res Ctr, Arnold Sch Publ Hlth, Columbia, SC USA
[5] Univ South Carolina, Arnold Sch Publ Hlth, Off Study Aging, Columbia, SC USA
[6] Univ South Carolina, Arnold Sch Publ Hlth, Dept Hlth Serv Policy & Management, Columbia, SC USA
[7] Univ South Carolina, Arnold Sch Publ Hlth, Columbia, SC USA