Published Online: December 10, 2014. doi:10.1001/jama.2014.16616.
Study concept and design: Bekelman, Sylwestrzak, Barron, Freedman, Malin, Emanuel.
Acquisition, analysis, or interpretation of data: All authors.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: Bekelman, Sylwestrzak, Barron, Liu, Epstein.
Obtained funding: Bekelman, Barron, Malin.
Administrative, technical, or material support: Sylwestrzak.
Study supervision: Bekelman, Barron, Malin, Emanuel.
Conflict of Interest Disclosures: All authors have completed and submitted the ICMJE Form for Disclosure of Potential Conflicts of Interest. Drs Liu and Barron and Ms Sylwestrzak reported that they are employees of HealthCore, which is a wholly-owned Anthem subsidiary. Dr Malin reported that she is an employee of Anthem.
Funding/Support: Dr Bekelman received support from grant K07-CA163616 from the National Cancer Institute. Anthem provided funds to support research at HealthCore, a wholly-owned Anthem subsidiary.
Role of the Funder/Sponsor: Anthem had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication.
Disclaimer: The interpretation and reporting of these data are the sole responsibility of the authors.
Additional Contributions: We thank Nandita Mitra, PhD, of the University of Pennsylvania, for methodological discussion during the revision process. Dr Mitra was not compensated for her contributions.
Correction: This article was corrected December 18, 2014, because the sponsoring company changed its name to Anthem.