[1] Texas Tech Univ, Ctr Emphasis Diabet & Metab, Paul L Foster Sch Med, Hlth Sci Ctr El Paso, El Paso, TX USA
[2] Texas Tech Univ, Div Biostat & Epidemiol, Paul L Foster Sch Med, Hlth Sci Ctr El Paso, El Paso, TX USA
[3] Wake Forest Baptist Med Ctr, Dept Epidemiol & Prevent, Winston Salem, NC USA
[4] Univ North Texas, Sch Publ Hlth, Hlth Sci Ctr, Ft Worth, TX USA