Accepted for Publication: May 15, 2013.
Published Online: November 13, 2013. doi:10.1001/jamadermatol.2013.5764.
Study concept and design: Lenane, Macarthur, Parkin, Krafchik.
Acquisition of data: Lenane, Macarthur.
Analysis and interpretation of data: Lenane, Macarthur, Parkin, DeGroot, Khambalia, Pope.
Drafting of the manuscript: Lenane, DeGroot, Pope.
Critical revision of the manuscript for important intellectual content: Macarthur, Parkin, Krafchik, Pope.
Statistical analysis: Macarthur, DeGroot, Khambalia.
Obtained funding: Lenane.
Administrative, technical, or material support: Macarthur, Khambalia.
Study supervision: Macarthur, Parkin, Pope.
Study supervision: Macarthur, Parkin.
Conflict of Interest Disclosures: None reported.
Funding/Support: This study was supported by a RESTRACOMP (Research Training Competition, Research Institute, The Hospital for Sick Children) grant and by Physician Services Inc (PSI) grant 3227216019.
Role of the Sponsor: RESTRACOMP and PSI had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; and preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication.
Addition Contributions: The Paediatric Outcomes Research Team assisted with administrative and technical support.