Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/87992
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Title: Prevalence of sleep disturbances during COVID-19 outbreak in an urban Chinese population : a cross-sectional study
Authors: Yu, BYM 
Yeung, WF 
Lam, JCS 
Yuen, SCS
Lam, SC 
Chung, VCH
Chung, KF
Lee, PH 
Ho, FYY
Ho, JYS 
Issue Date: Oct-2020
Source: Sleep medicine, Oct. 2020, v. 74, p. 18-24
Abstract: Objective: The COVID-19 pandemic is a large-scale public health emergency that likely precipitated sleep disturbances in the community. This study aimed to investigate the prevalence and correlates of sleep disturbances during the early phase of COVID-19 pandemic.
Methods: This web-based cross-sectional study recruited 1138 Hong Kong adults using convenience sampling over a two-week period from 6th April 2020. The survey collected data on sleep disturbances, mood, stress, stock of infection control supplies, perceived risk of being infected by COVID-19, and sources for acquiring COVID-19 information. The participants were asked to compare their recent sleep and sleep before the outbreak. The Insomnia Severity Index (ISI) was used to assess their current insomnia severity. Prevalence was weighted according to 2016 population census.
Results: The weighted prevalence of worsened sleep quality, difficulty in sleep initiation, and shortened sleep duration since the outbreak were 38.3%, 29.8%, and 29.1%, respectively. The prevalence of current insomnia (ISI score of ≥10) was 29.9%. Insufficient stock of masks was significantly associated with worsened sleep quality, impaired sleep initiation, shortened sleep duration, and current insomnia in multivariate logistic regression (adjusted OR = 1.57, 1.72, 1.99, and 1.96 respectively, all p < 0.05).
Conclusion: A high proportion of people in Hong Kong felt that their sleep had worsened since the COVID-19 outbreak. Insufficient stock of masks was one of the risk factors that were associated with sleep disturbances. Adequate and stable supply of masks may play an important role to maintain the sleep health in the Hong Kong general population during a pandemic outbreak.
Keywords: Insomnia
Pandemic
Epidemic
Web-based
Masks
Coronavirus
Publisher: Elsevier
Journal: Sleep medicine 
ISSN: 1389-9457
EISSN: 1878-5506
DOI: 10.1016/j.sleep.2020.07.009
Rights: © 2020 Elsevier B.V. All rights reserved.
© 2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/.
The following publication Yu, B. Y.-M., Yeung, W.-F., Lam, J. C.-S., Yuen, S. C.-S., Lam, S. C., Chung, V. C.-H., Chung, K.-F., Lee, P. H., Ho, F. Y.-Y., & Ho, J. Y.-S. (2020). Prevalence of sleep disturbances during COVID-19 outbreak in an urban Chinese population: a cross-sectional study. Sleep Medicine, 74, 18-24 is available at https://dx.doi.org/10.1016/j.sleep.2020.07.009.
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