Accepted for Publication: August 22, 2013.
Published Online: March 26, 2014. doi:10.1001/jamadermatol.2013.7696.
Study concept and design: Chen.
Acquisition of data: Chen.
Analysis and interpretation of data: All authors.
Drafting of the manuscript: Carr.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: Veledar.
Obtained funding: Chen.
Administrative, technical, and material support: Carr.
Study supervision: Chen.
Conflict of Interest Disclosures: Dr Chen has received royalties from Eli Lilly (2007) and Pierre Fabre (2011) for licensing of the ItchyQoL instrument and has been an outcomes research consultant for Biogen and Astellas and a principal investigator for studies sponsored by Hoffman-LaRoche and Galderma. No other disclosures are reported.
Funding/Support: The Veterans Health Administration (VHA) provided (1) financial support and (2) access to the Veterans Hospital Patient Database for sampling purposes.
Role of the Sponsors: The VHA 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.
Additional Contributions: We thank the VHA for its support of this research.