Biases and limitations in observational studies of Long COVID prevalence and risk factors: A rapid systematic umbrella review

• Miao Jenny Hua ,

  Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Software, Visualization, Writing – original draft, Writing – review & editing

  * E-mail: miao.hua@northwestern.edu (MJH); Gisela.butera@nih.gov (GB)

  Affiliations Office of the Assistant Secretary of Planning and Evaluation, U.S. Department of Health and Human Services, Washington, DC, United States of America, Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, United States of America

  https://orcid.org/0000-0002-8845-1185

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• Gisela Butera ,

  Roles Conceptualization, Data curation, Methodology, Software

  * E-mail: miao.hua@northwestern.edu (MJH); Gisela.butera@nih.gov (GB)

  Affiliation National Institutes of Health Library, Office of Research Services, U.S. Department of Health and Human Services, Bethesda, MD, United States of America

  https://orcid.org/0000-0003-3976-0018

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• Oluwaseun Akinyemi,

  Roles Investigation, Validation

  Affiliation Office of the Assistant Secretary of Planning and Evaluation, U.S. Department of Health and Human Services, Washington, DC, United States of America

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• Deborah Porterfield

  Roles Conceptualization, Investigation, Methodology, Project administration, Resources, Supervision, Writing – review & editing

  Affiliation Office of the Assistant Secretary of Planning and Evaluation, U.S. Department of Health and Human Services, Washington, DC, United States of America

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