Accepted for Publication: June 25, 2012.
Published Online: October 8, 2012. doi:10.1001/archinternmed.2012.4508
Author Contributions: Drs Simard and Fransua contributed equally to this work. Dr Simard had full access to all 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: Simard, Fransua, and Jemal. Acquisition of data: Simard, Fransua, and Naishadham. Analysis and interpretation of data: Simard, Fransua, Naishadham, and Jemal. Drafting of the manuscript: Simard and Fransua. Critical revision of the manuscript for important intellectual content: Simard, Fransua, Naishadham, and Jemal. Statistical analysis: Simard and Naishadham. Administrative, technical, and material support: Simard. Study supervision: Simard and Jemal.
Conflict of Interest Disclosures: None reported.
Funding/Support: This study was funded by the Intramural Research Program of the American Cancer Society.
Role of the Sponsor: The sponsor did not have a role in the design and conduct of the study; in the collection, analysis, or interpretation of the data; or in the preparation or approval of the manuscript.
Previous Presentation: This study was presented in part at the 45th Annual Meeting of the Society for Epidemiologic Research; June 27, 2012; Minneapolis, Minnesota.
Online-Only Material: Listen to an author interview about this article, and others, at http://bit.ly /OSqSNt.
Additional Contributions: We thank Jiaquan Xu, MD, from the Centers for Disease Control and Prevention, National Center for Health Statistics, Mortality Statistics Branch, for the provision of mortality rates by educational attainment, and Victor Valdisera, BA, from the US Bureau of the Census, Housing and Household Economic Statistics Division, for the provision of population denominators by educational attainment; neither was compensated for the contributions.