Accepted for Publication: November 22, 2014.
Published Online: February 2, 2015. doi:10.1001/jamapediatrics.2014.3534.
Study concept and design: All authors.
Acquisition, analysis, or interpretation of data: All authors.
Drafting of the manuscript: Zickafoose.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: Zickafoose, Prosser.
Obtained funding: Zickafoose, DeCamp.
Study supervision: Prosser.
Conflict of Interest Disclosures: None reported.
Funding/Support: This work was supported by a grant from the Blue Cross Blue Shield of Michigan Foundation. Development of the survey was supported by seed grant UL1RR024986 through the Michigan Institute for Clinical and Health Research at the University of Michigan. Dr Zickafoose was a research fellow in the CHEAR Unit, Division of General Pediatrics, University of Michigan at the time of the study and was supported by training grant T32 HD07534 from the National Institute of Child Health and Human Development.
Role of the Funder/Sponsor: The funders 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.
Additional Contributions: We thank Achamyeleh Gebramariam, MS, Child Health Evaluation and Research (CHEAR) Unit, Division of General Pediatrics, University of Michigan, for his assistance with the statistical analyses in this study. A portion of his time was subsidized by the grant from the Blue Cross Blue Shield of Michigan Foundation listed above.