Accepted for Publication: October 8, 2021.
Published Online: January 31, 2022. doi:10.1001/jamainternmed.2021.8067
Corresponding Author: Sarah D. Berry, MD, MPH, Hinda and Arthur Marcus Institute for Aging Research, Hebrew SeniorLife, Boston, MA 02131 (sarahberry@hsl.harvard.edu).
Author Contributions: Drs Goldfeld and McConeghy had full access to all of the data in the study and take responsibility for the integrity of the data and the accuracy of the data analysis.
Concept and design: Berry, Goldfeld, McConeghy, Gifford, Davidson, Han, Syme, Harrison, Recker, Johnson, Gravenstein, Mor.
Acquisition, analysis, or interpretation of data: Berry, McConeghy, Gifford, Davidson, Han, Gandhi, Mitchell, Harrison, Recker, Johnson, Gravenstein, Mor.
Drafting of the manuscript: Berry, Gifford, Mitchell, Harrison.
Critical revision of the manuscript for important intellectual content: Goldfeld, McConeghy, Davidson, Han, Syme, Gandhi, Mitchell, Harrison, Recker, Johnson, Gravenstein, Mor.
Statistical analysis: Berry, Goldfeld, McConeghy.
Obtained funding: Berry, McConeghy, Mitchell, Mor.
Administrative, technical, or material support: McConeghy, Gifford, Davidson, Han, Syme, Harrison, Recker, Johnson, Gravenstein, Mor.
Supervision: Gifford, Davidson, Harrison, Gravenstein, Mor.
Conflict of Interest Disclosures: Dr McConeghy reported grants from Sanofi-Pasteur, Seqirus Pharmaceuticals, and Pfizer outside the submitted work. Dr Gifford reported grants from Brown University during the conduct of the study; grants from the Centers for Disease Control and from Brown University outside the submitted work; as well as work for the American Health Care Association. Dr Davidson reported grants from Brown University related to IMPACT-C during the conduct of the study and grants from Sanofi Research and Seqirus Research outside the submitted work. Dr Han reported grants from Brown University during the conduct of the study and grants from Sanofi Pasteur and Vaccine research outside the submitted work. Dr Gandhi reported grants from the National Institute for Health Care Management, the Washington Center for Equitable Growth, and the University of California Los Angeles outside the submitted work. Dr Gravenstein reported grants from Seqirus, Sanofi, and Pfizer, and personal fees from Janssen, Novavax, Merck, Seqirus, Sanofi, Vaxart, and Pfizer outside the submitted work. Dr Mor reported personal fees from naviHealth outside the submitted work. No other disclosures were reported.
Funding/Support: This work was supported by a grant from the National Institute on Aging (U54AG063546).
Role of the Funder/Sponsor: The National Institute on Aging 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.
Disclaimer: The content and 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 United States government.
Data Sharing Statement: See Supplement 3.
Additional Contributions: We would like to acknowledge the data analytic team at the American Healthcare Association center for Health Policy and Evaluation in LTC for providing data on facility and resident characteristics used in the randomization and analyses. They were not compensated for their work.