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As of January 22, 2021, there were more than 98 million confirmed cases of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), more than 24 million of which are attributed to the US alone.1 Recent surges in SARS-CoV-2 and the threat of a second wave have prompted many states to reconsider reopening timelines. During the initial US surge, 45 out of 50 state governments issued shelter-in-place (SIP) orders from March 19, 2020, to April 6, 2020, to slow disease transmission.2 The initial SIP coincided with an observed decrease in daily step counts,3 likely reflective of changes in physical activity and patterns of daily living, as well as concurrent self-reported increases in snacking and overeating.4 We therefore sought to investigate ambulatory weight changes of a longitudinal cohort during initial SIP orders to better understand the possible downstream health implications of prolonged SIP.
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Accepted for Publication: January 29, 2021.
Published: March 22, 2021. doi:10.1001/jamanetworkopen.2021.2536
Open Access: This is an open access article distributed under the terms of the CC-BY License. © 2021 Lin AL et al. JAMA Network Open.
Corresponding Author: Gregory M. Marcus, MD, MAS, 505 Parnassus Ave, M1180B, San Francisco, CA 94143 (firstname.lastname@example.org).
Author Contributions: Dr Marcus had full access to all of the data in the study and takes responsibility for the integrity of the data and the accuracy of the data analysis.
Concept and design: Lin, Olgin, Marcus.
Acquisition, analysis, or interpretation of data: Lin, Vittinghoff, Pletcher, Marcus.
Drafting of the manuscript: Lin, Olgin, Marcus.
Critical revision of the manuscript for important intellectual content: Lin, Vittinghoff, Olgin, Pletcher.
Statistical analysis: Lin, Vittinghoff.
Obtained funding: Olgin, Pletcher, Marcus.
Administrative, technical, or material support: Olgin, Marcus.
Supervision: Olgin, Marcus.
Conflict of Interest Disclosures: None reported.
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