Psychological predictors of self-reported COVID-19 outcomes: results from a prospective cohort study

Background: Previous research has shown that psychological factors, such as stress and social support, are associated with greater susceptibility to viral respiratory illnesses and more severe symptoms. During the COVID-19 pandemic there has been a well-documented deterioration in psychological well-being and increased social isolation. This raises questions as to whether those experiencing psychological adversity during the pandemic are more at risk of contracting and/or experiencing COVID-19 symptoms. Purpose: To examine the relationship between psychological factors and the risk of COVID-19 self-reported infection and the symptomatic experience of SARS CoV-2 (indicated by the number and severity of symptoms) Methods: As part of a longitudinal prospective observational cohort study, 1087 adults completed validated measures of psychological wellbeing during April 2020 and self-reported incidence of COVID-19 infection and symptom experience across the pandemic through to December 2020. Regression models were used to explore these relationships controlling for demographic and occupational factors. Results: Greater psychological distress during the early phase of the pandemic was significantly associated with subsequent self-reported SARS CoV-2 infection as well as the experience of a greater number and more severe symptoms. Conclusion: COVID-19 infection and symptoms may be more common among those experiencing elevated psychological distress. Further research to elucidate the mechanisms underlying these associations is needed.