Published Online: July 29, 2013. doi:10.1001/jamainternmed.2013.8980.
Acquisition of data: Kannry, Mann.
Analysis and interpretation of data: McGinn, McCullagh, Knaus, Sofianou, Wisnivesky, Mann.
Drafting of the manuscript: McGinn, McCullagh, Kannry, Knaus, Sofianou, Mann.
Critical revision of the manuscript for important intellectual content: McGinn, Kannry, Wisnivesky, Mann.
Statistical analysis: Sofianou, Wisnivesky, Mann.
Obtained funding: McGinn.
Administrative, technical, and material support: McCullagh, Kannry, Knaus.
Study supervision: McGinn, Kannry.
Conflict of Interest Disclosures: Dr Wisnivesky is a member of the research board of EHE International; has received consulting fees from Merck, IMS Health, and UBS; and is the recipient of a research grant from GlaxoSmithKline.
Funding/Support: This study was supported by grant 5 R18 HS 018491 from the Agency for Health and Quality Research (Dr McGinn).
Role of the Sponsor: The Agency for Health and Quality Research participated in the design and conduct of the study and in the collection, management, analysis, and interpretation of the data.
Additional Contributions: Jacqui Arciniega, MPH, Diego Chiluisa, BA, Dan Edonyabo, MS, Alice Li, MD, and Lucas Romero, BA, assisted with the study.