Published Online: March 31, 2014. doi:10.1001/jamainternmed.2014.537.
Study concept and design: Dashiell-Earp, Uslan.
Acquisition of data: Dashiell-Earp, Bell, Uslan.
Analysis and interpretation of data: Dashiell-Earp, Bell, Ang, Uslan.
Drafting of the manuscript: Dashiell-Earp.
Critical revision of the manuscript for important intellectual content: Dashiell-Earp, Bell, Ang, Uslan.
Statistical analysis: Bell, Ang.
Administrative, technical, and material support: Dashiell-Earp, Bell.
Study supervision: Uslan.
Conflict of Interest Disclosures: None reported.
Funding/Support: This research was funded in part by National Institutes of Health (NIH) grant UL1TR000124.
Role of the Sponsor: The NIH 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 would like to thank Carlene Anteau, MS, RN, and Bianca Christenson, MBA, MPH, of Awarepoint Corporation for donating the RFID tags and for their technical support. Neither they nor Awarepoint received compensation for their contributions, and they were not involved in the data analysis.