1. Brian S. Armour, PhD; and Chung-Won Lee, PhD, are with the Centers for Disease Control and Prevention, Atlanta, Georgia. M. Melinda Pitts, PhD, is with the Federal Reserve Bank of Atlanta, Atlanta, Georgia. The findings and conclusions in this study are those of the authors and do not necessarily represent the views of the Federal Reserve Bank of Atlanta, the Federal Reserve System, or the Centers for Disease Control and Prevention