Accepted for Publication: November 22, 2012.
Published Online: May 22, 2013. doi:10.1001/jamadermatol.2013.3049.
Study concept and design: Huang, Mullangi.
Acquisition of data: Huang, Mullangi, Guo.
Analysis and interpretation of data: All authors.
Drafting of the manuscript: All authors.
Critical revision of the manuscript for important intellectual content: Huang, Mullangi, Qureshi.
Statistical analysis: Huang, Mullangi, Qureshi.
Administrative, technical, or material support: Huang, Guo.
Study supervision: Huang, Qureshi.
Conflict of Interest Disclosures: Dr Qureshi reported serving as a consultant for Abbott, the Centers for Disease Control and Prevention, Novartis, and Janssen, and receiving a grant from Amgen for an unrelated project. The Psoriatic Arthritis Screening and Evaluation (PASE) questionnaire was licensed to Pfizer and Merck for clinical trials.
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.
Correction: This article was corrected on April 25, 2014, to fix inadvertently transposed data for 2 items in the Abstract, text, and Table 2.