Accepted for Publication: June 1, 2014.
Published Online: September 8, 2014. doi:10.1001/jamainternmed.2014.3297.
Study concept and design: Gershengorn, Wunsch, Scales, Rubenfeld, Garland.
Acquisition, analysis, or interpretation of data: Gershengorn, Wunsch, Zarychanski, Rubenfeld, Garland.
Drafting of the manuscript: Gershengorn, Wunsch, Garland.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: All authors.
Study supervision: Wunsch, Garland.
Conflict of Interest Disclosures: None reported.
Funding/Support: Dr Scales is supported by a fellowship in Translational Health Research from the Physicians' Services Incorporated Foundation.
Role of the Sponsor: The funding source 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.