Author Contributions: Dr Weitzel had full access to all of the data in the study and takes responsibility for the integrity of the data and the accuracy of the data analysis.
Study concept and design: Weitzel, Gambol, MacDonald
Acquisition of data: Weitzel, Lagos, Cullinane, Gambol, Blazer, MacDonald
Analysis and interpretation of data: Weitzel, Lagos, Cullinane, Culver, Palomares, Lowstuter
Drafting of the manuscript: Weitzel, Lagos, Cullinane, Gambol, Culver
Critical revision of the manuscript for important intellectual content: Weitzel, Lagos, Cullinane, Culver, Blazer, Palomares, Lowstuter, MacDonald
Statistical analysis: Lagos, Culver
Obtained funding: Weitzel
Administrative, technical, or material support: Weitzel, Lagos, Blazer
Study supervision: Weitzel, MacDonald
Financial Disclosures: None reported.
Funding/Support: This study was supported in part by grant 99-86874 from the California Cancer Research Program of the University of California and by grant R25 CA85771 from the National Institutes of Health for support of Dr Cullinane and Ms Gambol. This study was also supported in part by National Institutes of Health General Clinical Research Center grant M01 RR00043 awarded to the City of Hope National Medical Center, Duarte, Calif, for the collection and management of the registry.
Role of the Sponsors: The funding agencies had no role in the design and conduct of the study, in the collection, analysis, and interpretation of the data, or in the preparation, review, or approval of the manuscript.
Previous Presentation: This study was presented in part at the American Society of Clinical Oncology annual meeting, May 31–June 3, 2003, Chicago, Ill.
Acknowledgment: We thank Gwen Uman, PhD, Vital Research LLC, Los Angeles, Calif, for assistance with statistical analysis; City of Hope Cancer Screening and Prevention Program Network collaborators Jane Congleton, MS, RN, CGC, Banner Good Samaritan, Phoenix, Ariz, and Kimberly Banks, MS, CGC, St Joseph Hospital, Orange, Calif, for contributing cases; Sharon Sand, CCRP, City of Hope, for assistance with database management; and Judy Wong-Toh, City of Hope, for assistance with the manuscript. Dr Uman received compensation via a subcontract for statistical work. All others acknowledged herein received no compensation.