Accepted for Publication: July 17, 2013.
Published Online: January 29, 2014. doi:10.1001/jamadermatol.2013.6896.
Study concept and design: Wehner, Nead, Linos.
Acquisition of data: Wehner, Nameth, Choudhry, Gaskins.
Analysis and interpretation of data: All authors.
Drafting of the manuscript: Wehner, Nameth, Linos.
Critical revision of the manuscript for important intellectual content: Wehner, Chren, Choudhry, Gaskins, Nead, Boscardin, Linos.
Statistical analysis: Wehner, Nameth, Nead, Boscardin, Linos.
Obtained funding: Linos.
Administrative, technical, or material support: Wehner, Chren, Nameth, Gaskins.
Study supervision: Linos.
Conflict of Interest Disclosures: Dr Chren reports serving as a consultant for Genentech.
Funding/Support: This study was supported in part by the Doris Duke Charitable Foundation (grants to Ms Wehner); the Dermatology Foundation (grant to Dr Linos); the National Center for Research Resources of the National Institutes of Health (grant KL2RR024130 to Dr Linos); and the National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health (grants R01 AR 054983 and K24 AR052667 to Dr Chren).
Role of the Sponsor: The funding agencies had no role in the design and conduct of the study; collection, management, analysis, or interpretation of the data; preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication.
Correction: This article was corrected on February 18, 2014, to fix errors in Figure 3 and to renumber the references in several figures, the reference list, the text, and a table, and on March 11, 2014, to correct errors to the text and Table 2.