Author Contributions: Dr Conde-Agudelo had full access to all of the data in the study and takes responsibility for the integrity of the data and the accuracy of the data analysis.
Study concept and design: Conde-Agudelo.
Acquisition of data: Conde-Agudelo, Rosas-Bermúdez.
Analysis and interpretation of data: Conde-Agudelo, Rosas-Bermúdez, Kafury-Goeta.
Drafting of the manuscript: Conde-Agudelo, Rosas-Bermúdez, Kafury-Goeta.
Critical revision of the manuscript for important intellectual content: Conde-Agudelo, Rosas-Bermúdez, Kafury-Goeta.
Statistical analysis: Conde-Agudelo, Rosas-Bermúdez, Kafury-Goeta.
Obtained funding: Conde-Agudelo.
Administrative, technical, or material support: Rosas-Bermúdez, Kafury-Goeta.
Study supervision: Conde-Agudelo.
Financial Disclosures: None reported.
Funding/Support: This work was supported by the Office of Population and Reproductive Health, Bureau for Global Health, US Agency for International Development, under the terms of Cooperative Agreements HRN-A-00-00-00003-00 and GPO-A-00-05-00027-0 awarded to the CATALYST Consortium.
Role of the Sponsor: The funding organization had no role in the design and conduct of the study; the collection, analysis, and interpretation of the data; or the preparation, review, or approval of the manuscript.
Disclaimer: The author's views expressed herein do not necessarily reflect the views of the US Agency for International Development or the US government.
Acknowledgment: We thank Maureen Norton, PhD (Office of Population and Reproductive Health, Bureau for Global Health, USAID, Washington, DC), Taroub Faramand, MD, MPH (CATALYST Consortium, Washington, DC), José Belizán, MD, PhD, and Eduardo Bergel, PhD (Institute for Clinical Effectiveness and Health Policy, Buenos Aires, Argentina), Bao-Ping Zhu, MD, MS (Missouri Department of Health and Senior Services, Jefferson City), Julie DaVanzo, PhD (RAND Corporation, Santa Monica, Calif), Roger Rochat, PhD (Rollins School of Public Health, Atlanta, Ga), Linda Adair, PhD (University of North Carolina at Chapel Hill), and Stan Becker, PhD (Johns Hopkins University School of Hygiene and Public Health, Baltimore, Md), for their relevant contributions to previous versions of the article; Eileen D’Andrea, MLS, Jennifer Gelman, MLS, and Juan Carlos Toscano, BS (Academy for Educational Development, Washington, DC) and Laurel Suiter, MA (CATALYST Consortium), for their assistance in conducting the computerized literature search and obtaining the articles; and Ed Abel, MPA, Elsa Berhane, MPH, and Caroline Tran, MA (CATALYST Consortium), and Paula Hollerbach, PhD, Amy Uccello, MA, and Margaret McGunnigle, MPH (Academy for Educational Development), for their administrative support in the organization of the review.