Group Information: The NASS group are listed at the end of the article.
Study concept and design: Kawwass, Kissin, Kulkarni, Session, Callaghan, Jamieson.
Acquisition, analysis, or interpretation of data: All authors.
Drafting of the manuscript: Kawwass, Creanga, Callaghan, Jamieson.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: Kulkarni, Creanga.
Administrative, technical, or material support: Kissin, Creanga.
Study supervision: Kissin, Session, Jamieson.
Conflict of Interest Disclosures: The authors have completed and submitted the ICMJE Form for Disclosure of Potential Conflicts of Interest and none were reported.
Group Information: The NASS Group is composed of the following additional members (all with the Division of Reproductive Health, US Centers for Disease Control and Prevention [CDC]) who contributed to the data collection but received no financial compensation: Sheree Boulet, DrPH, MPH, Jeani Chang, MPH, Sara Crawford, PhD, Allison Mneimneh, MPH, CPM, Mithi Sunderam, PhD, and Yujia Zhang, PhD. Pedro Moro, MD, MPH (Division of Healthcare Quality Promotion, CDC), participated in the critical revision of the manuscript but did not receive any financial compensation.
Disclaimer: The findings and conclusions in this report are those of the authors and do not necessarily represent the official position of the CDC.