Author Contributions: Drs Liu and Mattke 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: Liu, Waxman, Mattke.
Acquisition of data: Liu, Waxman, Main.
Analysis and interpretation of data: Liu, Waxman, Main, Mattke.
Drafting of the manuscript: Liu, Waxman, Mattke.
Critical revision of the manuscript for important intellectual content: Liu, Waxman, Main, Mattke.
Statistical analysis: Liu, Waxman, Main.
Obtained funding: Liu, Mattke.
Study supervision: Mattke.
Conflict of Interest Disclosures: All authors have completed and submitted the ICMJE Form for Disclosure of Potential Conflicts of Interest and none were reported.
Funding/Support: This study was financially supported by Ethicon Endo-Surgery Inc, Cincinnati, Ohio.
Role of the Sponsor: Ethicon Endo-Surgery Inc had no role in the design and conduct of the study or in the collection, analysis, and interpretation of the data. A draft manuscript was reviewed by Ethicon Endo-Surgery Inc, but the study authors made final decisions regarding the content and study conclusions.
Online-Only Material: The Author Video Interview is available here.
Additional Contributions: We thank Ethicon Endo-Surgery Inc (Cincinnati, Ohio) for the financial support of the research. Sydne Newberry, PhD (RAND Corporation), provided help with the preparation of the manuscript. Dr Newberry did not receive any compensation for her contribution apart from her salary as a RAND Corporation employee.