[1] Univ South Carolina, Arnold Sch Publ Hlth, Dept Biostat & Epidemiol, Columbia, SC USA
[2] Univ South Carolina, South Carolina SmartState Ctr Healthcare Qual, Arnold Sch Publ Hlth, Columbia, SC USA
[3] Univ South Carolina, Rural & Minor Hlth Res Ctr, Arnold Sch Publ Hlth, Columbia, SC USA
[4] Univ South Carolina, Arnold Sch Publ Hlth, Off Study Aging, Columbia, SC USA
[5] NYU, Rory Meyers Coll Nursing, New York, NY USA
[6] Univ South Carolina, Coll Arts & Sci, Columbia, SC USA
[7] Univ South Carolina, Arnold Sch Publ Hlth, Dept Biostat & Epidemiol, 915 Greene St,Discovery,4th floor, Columbia, SC 29208 USA