Accepted for Publication: August 23, 2014.
Published Online: January 14, 2015. doi:10.1001/jamadermatol.2014.3307.
Study concept and design: Wehner, Linos, Chren.
Acquisition, analysis, or interpretation of data: All authors.
Drafting of the manuscript: Wehner, Chren.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: Wehner, Parvataneni, Boscardin, Chren.
Obtained funding: Wehner, Linos, Chren.
Administrative, technical, or material support: Linos, Stuart, Chren.
Study supervision: Linos, Chren.
Conflict of Interest Disclosures: Dr Chren serves as a consultant for Genentech. No other disclosures were reported.
Funding/Support: This study was supported in part by grants from the Doris Duke Charitable Foundation (Dr Wehner), by the Dermatology Foundation (Dr Linos), by award KL2RR024130 from the National Center for Research Resources of the National Institutes of Health (NIH) (Dr Linos), and by grants R01 AR 054983 and K24 AR052667 from the National Institute of Arthritis and Musculoskeletal and Skin Diseases, NIH (Dr Chren).
Role of the Funder/Sponsor: The funding sources 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.