Published Online: February 1, 2012. doi:10.1001/jama.2012.170
Author Contributions: Dr Mykerezi 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: Reicks, Redden, Mann, Mykerezi, Vickers.
Acquisition of data: Reicks, Redden, Vickers.
Analysis and interpretation of data: Reicks, Redden, Mann, Mykerezi, Vickers.
Drafting of the manuscript: Reicks, Redden, Mann, Vickers.
Critical revision of the manuscript for important intellectual content: Reicks, Redden, Mann, Mykerezi, Vickers.
Statistical analysis: Mykerezi, Vickers.
Obtained funding: Reicks, Redden, Mann, Mykerezi, Vickers.
Administrative, technical, and material support: Reicks, Redden, Mann, Vickers.
Study supervision: Reicks, Vickers.
Conflict of Interest Disclosures: The authors have completed and submitted the ICMJE Form for Disclosure of Potential Conflicts of Interest and none were reported.
Funding/Support: The study was funded by the Economic Research Service, US Department of Agriculture, Food Assistance and Nutrition Program (project 276, agreement No. 59-5000-0-0069).
Role of the Sponsors: The US Department of Agriculture 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.
Additional Contributions: We thank Deb LaBounty (Nutrition Services supervisor, Richfield Public Schools, Richfield, Minnesota) for working on this study. We also thank Nikki Miller, BA (Department of Food Science and Nutrition, University of Minnesota) for her contribution to the preparation of materials, data acquisition, and administrative support. We are grateful to the school cafeteria staff for putting up with our presence in the cafeteria. Nikki Miller was a paid research assistant on the project. Deb LaBounty was not compensated for her contributions.