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Tracking Survivors With Long COVID: Method, Implementation, and Results of an Observational Study
Horng-Shiuann Wu1, Dola Pathak1, Mandy Hall2
1College of Nursing, Michigan State University, East Lansing, Michigan, USA.
Research in Nursing & Health
|January 7, 2025
Summary
Long COVID symptoms persist in many adults, with nearly half still symptomatic almost a year post-infection. Female sex and emergency department admission are linked to increased symptom severity and interference.
Area of Science:
- Infectious Diseases
- Public Health
- Epidemiology
Background:
- The COVID-19 pandemic has resulted in a significant number of individuals experiencing persistent, debilitating symptoms, commonly referred to as Long COVID.
- Long COVID poses substantial challenges to healthcare systems and economic recovery due to its widespread and enduring nature.
Purpose of the Study:
- To investigate the relationship between time since diagnosis and the persistence of symptoms in adult COVID-19 survivors.
- To examine the characteristics of individuals experiencing Long COVID, including symptom prevalence, severity, and interference.
Main Methods:
- An observational study was conducted using data from two patient cohorts (2020-2021 and 2021-2022) recruited from a mid-Michigan COVID-19 patient registry.
- Participants were sampled at least 3 months post-diagnosis, and symptom experience (number, severity, interference) was self-reported via a comprehensive symptom inventory.
Main Results:
- 66% of the 2020-2021 cohort and 47% of the 2021-2022 cohort reported at least one lingering symptom.
- Females reported significantly more symptoms, higher severity, and greater interference compared to males (p<0.05).
- Outpatients reported significantly lower symptom severity and interference compared to those admitted to emergency departments (p<0.05).
Conclusions:
- A notable proportion (43%) of adults remained symptomatic nearly a year after COVID-19 infection.
- Time since diagnosis did not significantly impact symptom experience in the studied cohorts.
- Female sex and admission setting (outpatient vs. emergency department) are critical factors influencing Long COVID symptom presentation and management.
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