Accepted for Publication: April 12, 2013.
Published Online: August 7, 2013. doi:10.1001/jamadermatol.2013.5015.
Study concept and design: Ogdie, Gelfand.
Acquisition of data: Yeung, Shin, Gelfand.
Analysis and interpretation of data: All authors.
Drafting of the manuscript: Yeung, Margolis.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: Yeung, Kimmel, Ogdie, Shin, Troxel, Gelfand.
Obtained funding: Gelfand.
Administrative, technical, and material support: Yeung, Shin, Attor.
Study supervision: Yeung, Mehta, Gelfand.
Conflict of Interest Disclosures: Dr Gelfand reported serving as a consultant for Abbott, Amgen, Celgene, Centocor, Merck, Novartis, and Pfizer; receiving grants from Abbott, Amgen, Genentech, Novartis, and Pfizer; and receiving payment for continuing medical education work related to psoriasis. Dr Kimmel reported serving as a consultant for Centocor, Merck, Novartis, and Pfizer, all unrelated to the subject of this manuscript.
Funding/Support: This study was supported by National Institutes of Health (NIH) training grants T32-AR07465 (Mr Yeung and Mr Shin) and T32-GM075766-6 (Dr Takeshita), a National Psoriasis Foundation Fellowship (Dr Takeshita ), an American College of Rheumatology Investigator Award (Dr Ogdie), and NIH grant R01-HL089744 (Dr Gelfand).
Role of the Sponsors: The sponsors had no role in the design and conduct of the study; in the collection, analysis, and interpretation of data; or in the preparation, review, or approval of the manuscript.
Previous Presentation: This study was presented in part at the Group for Research and Assessment of Psoriasis and Psoriatic Arthritis Annual Meeting; June 26, 2012; Stockholm, Sweden.