Published Online: January 27, 2014. doi:10.1001/jamainternmed.2013.13015.
Study concept and design: Kramer, Shakhatreh, Duan, El-Serag.
Acquisition of data: Kramer, Duan, El-Serag.
Analysis and interpretation of data: Kramer, Shakhatreh, Naik, Duan, El-Serag.
Drafting of the manuscript: Kramer, Shakhatreh, Duan, El-Serag.
Critical revision of the manuscript for important intellectual content: Kramer, Shakhatreh, Naik, El-Serag.
Statistical analysis: Kramer, Duan, El-Serag.
Obtained funding: Kramer, El-Serag.
Administrative, technical, or material support: Duan.
Study supervision: El-Serag.
Conflict of Interest Disclosures: None reported.
Funding/Support: This research was supported in part by National Institutes of Health (NIH) grant R01 NCI RC4 155844; the Center for Innovations in Quality, Effectiveness, and Safety (IQuESt) (grant CIN13-413) at the Michael E. DeBakey VA Medical Center, Houston, Texas; and the Texas Digestive Disease Center (grant NIH DK58338). Dr El-Serag is supported by grant K24-04-107 from the National Institute of Diabetes and Digestive and Kidney Diseases.
Role of the Sponsor: The funding agencies 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 views expressed in this article are those of the authors and do not necessarily reflect the position or policy of the Department of Veterans Affairs or the US government.
Previous Presentation: This work was presented as a poster at the annual Digestive Diseases Week conference; May 20, 2012; San Diego, California.
Additional Contributions: Marilyn Hinojosa-Lindsey, PhD, MA, was the study coordinator and assisted with administrative tasks and drafting of the manuscript. John Chen, PhD, provided methodological expertise for the data analysis. Ashley Helm, MA, and Amita Pathak, BA, conducted the medical chart reviews to confirm esophageal, gastric, or duodenal cancer diagnosis.