Accepted for Publication: October 4, 2013.
Published Online: January 6, 2014. doi:10.1001/jamainternmed.2013.13018.
Study concept and design: Goyal, Singh, Sibinga, Rowland-Seymour, Sharma, Berger, Ranasinghe, Bass, Haythornthwaite.
Acquisition of data: Goyal, Singh, Sibinga, Gould, Rowland-Seymour, Sharma, Berger, Maron, Shihab, Ranasinghe, Linn.
Analysis and interpretation of data: Goyal, Sibinga, Gould, Rowland-Seymour, Berger, Sleicher, Shihab, Ranasinghe, Linn, Saha, Bass, Haythornthwaite.
Drafting of the manuscript: Goyal, Singh, Sibinga, Gould, Rowland-Seymour, Sharma, Berger, Sleicher, Maron, Ranasinghe, Haythornthwaite.
Critical revision of the manuscript for important intellectual content: Goyal, Sibinga, Rowland-Seymour, Berger, Shihab, Ranasinghe, Linn, Saha, Bass, Haythornthwaite.
Statistical analysis: Goyal, Singh, Berger, Saha.
Obtained funding: Goyal, Bass.
Administrative, technical, and material support: Goyal, Gould, Sharma, Maron, Shihab, Linn, Bass.
Study supervision: Goyal, Sharma, Bass.
Conflict of Interest Disclosures: None reported.
Funding/Support: This study was supported by grant HHSA 290 2007 10061 from the Agency for Healthcare Research and Quality (AHRQ).
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. The funding source approved assertion of copyright by the authors, as noted in a letter from the AHRQ Contracting Officer.
Disclaimer: The authors are responsible for the contents, including any clinical or treatment recommendations. No statement in this article should be construed as an official position of AHRQ or of the US Department of Health and Human Services.
Additional Contributions: Shilpa H. Amin, MD, provided support for this review in her capacity as the Task Order Officer assigned by the AHRQ for the work done under this task order. We received thoughtful advice and input from our key informants and members of a technical expert panel, who were offered a small honorarium in appreciation of their time. Swaroop Vedula, MBBS, PhD, helped to conduct the meta-analysis and was compensated for his time. Manisha Reuben, BS, Deepa Pawar, MD, MPH, Oluwaseun Shogbesan, MBBS, MPH, and Yohalakshmi Chelladurai, MBBS, MPH, helped to review studies included in the review and were compensated for their time.