[1] Tennessee State Univ, Ctr Hlth Res, Nashville, TN 37209 USA
[2] Vanderbilt Univ, Dept Sociol, Nashville, TN 37235 USA
[3] Meharry Med Coll, Dept Family & Prevent Med, Nashville, TN 37208 USA
[4] So Illinois Univ, Dept Sociol, Carbondale, IL 62901 USA
[5] Tennessee State Univ, Dept Psychol, Nashville, TN 37203 USA