[1] Univ South Carolina, South Carolina Rural Hlth Res Ctr, Arnold Sch Publ Hlth, Columbia, SC 29208 USA
[2] Univ South Carolina, Dept Hlth Serv Policy & Management, Arnold Sch Publ Hlth, Columbia, SC 29208 USA
[3] Univ South Carolina, Dept Epidemiol & Biostat, Arnold Sch Publ Hlth, Columbia, SC 29208 USA
[4] Univ South Carolina, Statewide Canc Prevent & Control Program, Arnold Sch Publ Hlth, Columbia, SC 29208 USA
[5] Univ South Carolina, Sch Med, Dept Family & Prevent Med, Columbia, SC 29208 USA
[6] Univ South Carolina, Coll Nursing, Columbia, SC 29208 USA