Dr Ralston conceptualized the project and codirected its implementation, coordinated and critically reviewed all analyses, and drafted the initial manuscript; Dr Garber conceptualized the project and codirected its implementation and critically reviewed and revised the manuscript; Ms Rice-Conboy coordinated all aspects of project design, implementation, and data collection and critically reviewed and revised the manuscript; Drs Mussman, Shadman, and Walley provided project leadership and content, performed a portion of the analysis, and critically reviewed and revised the manuscript; Ms Nichols performed the analyses, prepared all tables and fi gures, and critically reviewed the manuscript; and all authors approved the fi nal manuscript as submitted.