Division of Epidemiology, College of Public Health, The Ohio State University, Columbus, Ohio; the Division of Reproductive Health, Centers for Disease Control and Prevention, Atlanta, Georgia; the Comprehensive Health Centre/Epidemiology Research and Training Unit and the University Hospital of the West Indies, the Ministry of Health, Kingston, Jamaica; and the Contraceptive Technology Innovation Division, FHI 360, Durham, North Carolina.
Corresponding author: Maria F. Gallo, PhD, Division of Epidemiology, College of Public Health, The Ohio State University, 324 Cunz Hall, 1841 Neil Avenue, Columbus, OH 43210-1351; e-mail: [email protected].
Supported by the Centers for Disease Control and Prevention, U.S. Agency for International Development, Family Health International (FHI 360) cooperative agreement, CA/GPO-A-00-05-00022.
Financial Disclosure The authors did not report any potential conflicts of interest.
The findings and conclusions in this report are those of the authors and do not necessarily represent the official position of the Centers for Disease Control and Prevention.