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. 2023 Apr 15. Online ahead of print. doi: 10.1016/S2213-2600(23)00124-8

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© 2023 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY 4.0 license

Since January 2020 Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre - including this research content - immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active.

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Consort diagram for participants included in the analysis

Participants were recruited from the post-hospitalisation COVID-19 study (PHOSP-COVID) who were evaluated at the early timepoint and gave their consent for participation in the study. Sleep disturbance was evaluated with two types of measures (subjective and device-based). FVC=forced vital capacity. SARC-F=strength, assistance with walking, rising from a chair, climbing stairs, and falls. GAD7=Generalised Anxiety Disorder 7-item scale.