Long-Term Consequences of COVID-19 in Predominantly Immunonaive Patients: A Canadian Prospective Population-Based Study

<b>Background</b>: Lingering symptoms are frequently reported after acute SARS-CoV-2 infection, a condition known as post-COVID-19 condition (PCC). The duration and severity of PCC in immunologically naïve persons remain unclear. Furthermore, the long-term consequences of these chronic s...

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Main Authors: Justine Benoit-Piau, Karine Tremblay, Alain Piché, Frédéric Dallaire, Mathieu Bélanger, Marc-André d’Entremont, Jean-Charles Pasquier, Martin Fortin, Catherine Bourque, Fanny Lapointe, Jean-François Betala-Belinga, Geneviève Petit, Guillaume Jourdan, Renata Bahous, Camilo Maya, Amira Benzina, Muhammad Faiyaz Hossain, Marie-Audrey Peel, Olivier Houle, Marie-Sandrine Auger, Antoine Rioux, Paul Farand
Format: Article
Language:English
Published: MDPI AG 2023-09-01
Series:Journal of Clinical Medicine
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Online Access:https://www.mdpi.com/2077-0383/12/18/5939
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Summary:<b>Background</b>: Lingering symptoms are frequently reported after acute SARS-CoV-2 infection, a condition known as post-COVID-19 condition (PCC). The duration and severity of PCC in immunologically naïve persons remain unclear. Furthermore, the long-term consequences of these chronic symptoms on work and mental health are poorly documented. <b>Objective</b>: To determine the outcome, the risk factors, and the impact on work and mental health associated with post-COVID-19 symptoms. <b>Methods</b>: This prospective population-based study assessed acute COVID-19 symptoms and their evolution for up to nine months following infection. Individuals aged 18 years and older with COVID-19 in three Canadian regions between 1 November 2020 and 31 May 2021 were recruited. Participants completed a questionnaire that was either administered by trained student investigators over the phone or self-administered online. <b>Results</b>: A total of 1349 participants with a mean age of 46.6 ± 16.0 years completed the questionnaire. Participants were mostly unvaccinated at the time of their COVID-19 episode (86.9%). Six hundred and twenty-two participants (48.0%) exhibited one symptom or more, at least three months post-COVID-19. Among participants with PCC, 23.0% to 37.8% experienced fatigue at the time of survey. Moreover, 6.1% expressed psychological distress. Risk factors for PCC and fatigue included female sex (OR = 1.996), higher number of symptoms (OR = 1.292), higher severity of episode (OR = 3.831), and having a mental health condition prior to the COVID-19 episode (OR = 5.155). <b>Conclusions</b>: In this multicenter cohort study, almost half (47%) of the participants reported persistent symptoms >3 months after acute infection. Baseline risk factors for PCC include female sex, number and severity of symptoms during acute infection, and a previous diagnosis of mental health disorder. Having PCC negatively impacted health-related quality of life and these patients were more likely to exhibit psychological distress, as well as fatigue.
ISSN:2077-0383