Published Online: September 17, 2012. doi:10.1001/archinternmed.2012.3726
Author Contributions: All authors had full access to all the data in the study and assume full responsibility for the accuracy and completeness of the ideas presented. Study concept and design: Ross, Gross, and Ma. Acquisition of data: Long and Gross. Analysis and interpretation of data: Ross, Wang, Long, Gross, and Ma. Drafting of the manuscript: Ross. Critical revision of the manuscript for important intellectual content: Ross, Wang, Long, Gross, and Ma. Statistical analysis: Wang and Long. Obtained funding: Gross. Administrative, technical, and material support: Long. Study supervision: Gross and Ma.
Conflict of Interest Disclosures: Drs Ross and Gross are members of a scientific advisory board for FAIR Health Inc. Drs Ross and Gross receive support from Medtronic Inc to develop methods of clinical trial data sharing.
Funding/Support: Support for this project was provided by the P30 Cancer Center Support Grant at the Yale Comprehensive Cancer Center, Yale-New Haven Hospital. Dr Ross is supported by the National Institute on Aging (grant K08 AG032886) and by the American Federation for Aging Research through the Paul B. Beeson Career Development Award Program, from the Centers of Medicare and Medicaid Services, to develop and maintain performance measures that are used for public reporting, and from the Pew Charitable Trusts to examine regulatory issues at the US Food and Drug Administration.
Role of the Sponsors: The sponsor played no role in the design of the study, analysis or interpretation of findings, or drafting the manuscript and did not review or approve the manuscript prior to submission.
Additional Information: This study used the SEER-Medicare linked database. The interpretation and reporting of this data are the sole responsibility of the authors.
Additional Contributions: We acknowledge the efforts of the Applied Research Program, National Cancer Institute; the Office of Research, Development and Information, Centers for Medicare and Medicaid Services; and Information Management Services Inc and the SEER Program tumor registries in the creation of the SEER-Medicare Database.