Determinants of post-COVID ill-health in a cohort of Canadian healthcare workers.

We aimed to estimate prevalence of post-COVID conditions (PCC) among healthcare workers (HCWs) and to identify pre-disposing factors. A cohort of Canadian HCWs completed four questionnaires during the pandemic. At the final questionnaire, HCWs reported conditions attributed to earlier COVID-19. The proportion developing a PCC was estimated. Risk factors were evaluated by logistic regression. Among 4964 HCWs, 995 had one positive COVID test >90 days before completing the final questionnaire. 266 (27%) developed a PCC. Factors predisposing HCWs to a PCC included depression and increased alcohol consumption reported pre-infection, chronic ill-health pre-pandemic, and a perception that the infection was work-related. PCCs were less likely following vaccination. Most HCWs (98%) returned to work within 30 days, with 8% reporting severe PCC (n = 80). Pre-disposing factors reflected poor health pre-infection. Most conditions were mild.

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Copyright © 2024 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of the American College of Occupational and Environmental Medicine.

Déclaration de conflit d'intérêts

Conflicts of interest: Shannon Ruzycki, Alberta Innovates; Anil Adisesh, Member WSIB Ontario Scientific Advisory Table for Occupational Disease; Quentin Durand-Moreau, professional income from Alberta Health services (AHS), associate Editor with OEM (annual stipend), various grants as PI or co-I (WCB Alberta, NSERC Glenrose Hospital Foundation, Faculty of Medicine and Dentistry / University of Alberta), ACFAS (French-Canadian Association for the Advancement of Science). None other declared.