From the Center for Chronic Disease Outcomes Research, Minneapolis Veterans Affairs Health Care System, and the University of Minnesota, Minneapolis, Minnesota.

Disclaimer: The views expressed in this article are those of the authors and do not necessarily reflect the position or policy of the Department of Veterans Affairs or the U.S. government.

Grant Support: By the Department of Veterans Affairs, Veterans Health Administration, Office of Research and Development, Quality Enhancement Research Initiative (#09-009).

Disclosures: Dr. Greer reports grants from the Department of Veterans Affairs during the conduct of the study. Dr. Rector reports grants from the Department of Veterans Affairs during the conduct of the study. Dr. Olson reports grants from the Department of Veterans Affairs during the conduct of the study. Ms. Koeller reports grants from the Department of Veterans Affairs during the conduct of the study. Mr. MacDonald reports grants from the Department of Veterans Affairs during the conduct of the study. Dr. Wilt reports grants from the Department of Veterans Affairs during the conduct of the study. Authors not named here have disclosed no conflicts of interest. Disclosures can also be viewed at www.acponline.org/authors/icmje/ConflictOfInterestForms.do?msNum=M15-3058.

Editors' Disclosures: Christine Laine, MD, MPH, Editor in Chief, reports that she has no financial relationships or interests to disclose. Darren B. Taichman, MD, PhD, Executive Deputy Editor, reports that he has no financial relationships or interests to disclose. Cynthia D. Mulrow, MD, MSc, Senior Deputy Editor, reports that she has no relationships or interests to disclose. Deborah Cotton, MD, MPH, Deputy Editor, reports that she has no financial relationships or interest to disclose. Jaya K. Rao, MD, MHS, Deputy Editor, reports that she has stock holdings/options in Eli Lilly and Pfizer. Sankey V. Williams, MD, Deputy Editor, reports that he has no financial relationships or interests to disclose. Catharine B. Stack, PhD, MS, Deputy Editor for Statistics, reports that she has stock holdings in Pfizer and Johnson & Johnson.

Reproducible Research Statement:Study protocol: Available in the . Statistical code: RevMan 5.3; DerSimonian–Laird random-effects model. Data set: Available in the full report (www.hsrd.research.va.gov/publications/esp).

Requests for Single Reprints: Nancy Greer, PhD, Center for Chronic Disease Outcomes Research, Veterans Affairs Medical Center (111-O), Minneapolis, MN 55417; e-mail, nancy.greer@va.gov.

Current Author Addresses: Drs. Greer, Bolduc, Geurkink, Rector, Olson, and Wilt; Ms. Koeller; and Mr. MacDonald: Minneapolis Veterans Affairs Health Care System, One Veterans Drive, Minneapolis, MN 55417.

Author Contributions: Conception and design: N. Greer, J. Bolduc, E. Geurkink, K. Olson, E. Koeller, T.J. Wilt.

Analysis and interpretation of the data: N. Greer, J. Bolduc, E. Geurkink, T. Rector, K. Olson, E. Koeller, R. MacDonald, T.J. Wilt.

Drafting of the article: N. Greer, J. Bolduc, E. Geurkink, E. Koeller, R. MacDonald, T.J. Wilt.

Critical revision of the article for important intellectual content: N. Greer, E. Geurkink, J. Bolduc, T. Rector, E. Koeller, T.J. Wilt.

Final approval of the article: N. Greer, J. Bolduc, E. Geurkink, T. Rector, K. Olson, E. Koeller, R. MacDonald, T.J. Wilt.

Provision of study materials or patients: N. Greer.

Statistical expertise: T. Rector, R. MacDonald, T.J. Wilt.

Obtaining of funding: T.J. Wilt.

Administrative, technical, or logistic support: N. Greer, E. Koeller, T.J. Wilt.

Collection and assembly of data: N. Greer, J. Bolduc, T. Rector, K. Olson, E. Koeller, R. MacDonald.