Prevalence of long COVID in a national cohort: longitudinal measures from disease onset until 8 months’ follow-up

0301 basic medicine Long COVID SARS-CoV-2 COVID-19 Infectious and parasitic diseases RC109-216 16. Peace & justice Article 3. Good health 03 medical and health sciences COVID-19 Testing Post-Acute COVID-19 Syndrome 0302 clinical medicine Prevalence Faroe Islands Humans Longitudinal Studies Longitudinal study Persisting symptoms Follow-Up Studies
DOI: 10.1016/j.ijid.2022.06.031 Publication Date: 2022-06-23T16:04:37Z
ABSTRACT
Persistence of COVID-19 symptoms in nonhospitalized individuals beyond a few months has not been well characterized. In this longitudinal study from the Faroe Islands, we present prevalence of long COVID in mainly nonhospitalized patients who were followed up for up to 8 months.All Faroese individuals with confirmed COVID-19 diagnosis from August to December 2020 were invited to participate in this study (n = 297). Demographic and clinical characteristics and self-reported symptoms were ascertained prospectively using a detailed questionnaire administered at repeated phone interviews.A total of 226 individuals participated at baseline (226/297, 76% participation rate), of whom 170 participants had more than 3 months follow-up. Of these, 39% (n = 67/170, 95% confidence interval [CI] 32-37%) reported persistent symptoms (median [range] 168 [93-231] days) after the acute phase and 8% (n = 14/170, 95% CI 5-13%) reported severe persistent symptoms. The most prevalent symptoms were fatigue (17%) and smell (17%) and taste (14%) dysfunction. Long COVID was more common in people reporting daily medication use (odds ratio 2.34, 95% CI 1.02-5.37).Our results show that symptoms may take months to resolve, even among nonhospitalized individuals, with a mild illness in the acute phase. Continued monitoring for long COVID is needed to evaluate the added risk of a potential public health concern.
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