Author Contributions: Drs Johnson and Lawry and Ms Asher had full access to all of the data in the study and take responsibility for the integrity of the data and the accuracy of the data analysis.
Study concept and design: Johnson, Rosborough, Lawry.
Acquisition of data: Johnson, Rosborough, Raja, Panjabi.
Analysis and interpretation of data: Johnson, Asher-Resnick, Rosborough, Raja, Panjabi, Beadling, Lawry.
Drafting of the manuscript: Johnson, Asher-Resnick, Rosborough, Raja, Panjabi, Lawry.
Critical revision of the manuscript for important intellectual content: Johnson, Asher-Resnick, Rosborough, Beadling, Lawry.
Statistical analysis: Asher-Resnick.
Obtained funding: Johnson, Beadling, Lawry.
Administrative, technical, or material support: Johnson, Rosborough, Raja, Panjabi, Beadling, Lawry.
Study supervision: Johnson, Rosborough, Beadling, Lawry.
Financial Disclosures: None reported.
Funding/Support: This article has been produced with the generous support of the International Medical Corps through a donation by the Schooner Foundation; and the Center for Disaster and Humanitarian Assistance Medicine through the Henry Jackson Foundation and the Hunt Family Foundation.
Role of the Sponsor: The funding organizations played no role in the design and conduct of the study, in the collection, management, analysis, and interpretation of the data, or in the presentation, review, or approval of the manuscript.
Disclaimer: The views expressed herein are those of the authors and shall not, in any way whatsoever, be construed to reflect the official opinion of International Medical Corps, the Schooner Foundation, or International Medical Corps' other donors.
Additional Contributions: We are grateful to the following persons for their assistance with this project: Toronlah Varpilah, MD (Deputy Minister of Health for Liberia), Walter Gwenigale, MD (Minister of Health for Liberia). We also thank Ryan Larrance (International Medical Corps) and Michael Anastario, PhD (Center for Disaster and Humanitarian Assistance Medicine) for technical assistance with the survey and administrative aspects of the study. Alexis Hyder and Daniel Dean (Clinton Foundation), Weafus Quitoe, Tiyatein Health, and Treny Sasyniuk, MA (University of Calgary), Sharon Abramowitz, MA (Harvard University), and Trueman Sharp, MD, MPH (Uniformed Services University of the Health Sciences). We also are grateful to persons at TiyateinHealth, Harvard Humanitarian Initiative, the Cuttington School of Public Health, Ernst & Young, the National Opinion Research Center, and the Altarum Institute for their input and support; none of these institutions provided financial support for the study. We also thank the paid Liberian interviewers who assisted in data collection and the following who assisted with data entry: Tammy Childs-Ahinakwah, Stanley Chin, Eric Falk, Daniel Lee, Sarah Otto, Scott Price, Florence Rotz, Wendy Rotz, and Robyn K. Sneeringer. We also thank the following individuals who were paid for data entry: Gwendolyn Heaner, Johanna Söderström, Layal Sarrouh, Brian Cushman-Daly, Lisa Cushman-Daly, Lorin Young, Reena Pattani, and Baijayanta Mukhopadhyay. Finally, we thank our families for their patience and support.