Author Contributions: Dr Shiels 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: Shiels, Pfeiffer, Goedert, Engels.
Acquisition of data: Hall, Li, Engels.
Analysis and interpretation of data: Shiels, Hall, Pfeiffer, Li, Morton, Hartge, Engels.
Drafting of the manuscript: Shiels, Hall, Pfeiffer, Li.
Critical revision of the manuscript for important intellectual content: Shiels, Hall, Li, Goedert, Morton, Hartge, Engels.
Statistical analysis: Shiels, Hall, Pfeiffer, Li, Hartge, Engels.
Obtained funding: Goedert.
Administrative, technical, or material support: Hall, Li.
Study supervision: Engels.
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 funded by the Intramural Research Program of the National Cancer Institute.
Role of the Sponsor: The sponsor reviewed and approved final submission but did not have a role in design and conduct of the study; in the collection, analysis, and interpretation of the data; or in the preparation of the manuscript.
Disclaimer: The findings and conclusions in this study are those of the authors and do not necessarily represent the views of the Centers for Disease Control and Prevention.
Additional Contributions: For providing data for the HACM Study, we thank the HIV/AIDS and cancer registry staff in the states of Colorado, Connecticut, Florida, Illinois, Georgia, Maryland, Massachusetts, Michigan, New Jersey, and Texas and the metropolitan areas of New York, New York; Los Angeles, San Diego, and San Francisco, California; Seattle, Washington; and Washington, DC. We also thank Tim McNeel, BA (Information Management Systems), who was compensated for database management.