Clinics (Sao Paulo, Brazil) · 2025
Predictors of persistent fatigue one year after severe COVID-19: A prospective cohort study on depression and lung function.
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da Silva Elizabeth Mendes, de Campos Camila Machado, de Godoy Caroline Gil, de Oliveira Danielle Brancolini, Alonso Angelica Castilho, da Silva Vanderlei Carneiro, Schmitt Ana Carolina Basso, Ochiai Gabriela Sayuri, Viana Bianca de Oliveira Candido, da Silva Juliana Magalhães, de Carvalho Celso Ricardo Fernandes, de Carvalho Carlos Roberto Ribeiro, D'Andréa Greve Julia Maria, Pompeu José Eduardo
Аннотация
BACKGROUND: Fatigue is among the most enduring symptoms of long COVID. However, the relationship between persistent fatigue and factors such as physical performance, lung function, anxiety, and depression in severe cases of COVID-19 remains underexplored.
OBJECTIVES: To assess the prevalence of fatigue and its association with these factors in patients one year after severe COVID-19 hospital discharge.
METHODS: This cohort comprised participants aged 18-years and older diagnosed with COVID-19. Evaluations were conducted at one, four, six-, and twelve-months following hospital discharge. Clinical data were collected, which included assessments of fatigue - Functional Assessment of Chronic Illness Therapy Fatigue subscale, lung capacity ‒ Spirometry, physical performance - 1-minute Sit to Stand Test, psychological aspects - Hospital Anxiety and Depression Scale, and functional capacity - Barthel index.
RESULTS: Of the 162 participants, 50 % experienced fatigue one-month post-discharge and this prevalence gradually decreased to 36 % by the end of one-year period. The fatigue group had a median age of 58-years. It was predominantly composed of women, with a majority identifying as non-white and having a body mass index greater than 30 kg/m2. Physical performance assessments within the fatigue group showed no significant changes over time, whereas lung capacity demonstrated significant improvement only at the 12-month mark. Additionally, anxiety and depression levels were significantly higher in the fatigue group over time (p < 0.05).
CONCLUSIONS: Fatigue persisted in 36 % of participants one-year post-hospital discharge. The potential predictors of long-term fatigue were depressive symptoms and impaired lung function observed within the first month after hospital discharge. Therefore, the authors highlight the importance of screening and monitoring these aspects in order to enable early intervention in this population.
OBJECTIVES: To assess the prevalence of fatigue and its association with these factors in patients one year after severe COVID-19 hospital discharge.
METHODS: This cohort comprised participants aged 18-years and older diagnosed with COVID-19. Evaluations were conducted at one, four, six-, and twelve-months following hospital discharge. Clinical data were collected, which included assessments of fatigue - Functional Assessment of Chronic Illness Therapy Fatigue subscale, lung capacity ‒ Spirometry, physical performance - 1-minute Sit to Stand Test, psychological aspects - Hospital Anxiety and Depression Scale, and functional capacity - Barthel index.
RESULTS: Of the 162 participants, 50 % experienced fatigue one-month post-discharge and this prevalence gradually decreased to 36 % by the end of one-year period. The fatigue group had a median age of 58-years. It was predominantly composed of women, with a majority identifying as non-white and having a body mass index greater than 30 kg/m2. Physical performance assessments within the fatigue group showed no significant changes over time, whereas lung capacity demonstrated significant improvement only at the 12-month mark. Additionally, anxiety and depression levels were significantly higher in the fatigue group over time (p < 0.05).
CONCLUSIONS: Fatigue persisted in 36 % of participants one-year post-hospital discharge. The potential predictors of long-term fatigue were depressive symptoms and impaired lung function observed within the first month after hospital discharge. Therefore, the authors highlight the importance of screening and monitoring these aspects in order to enable early intervention in this population.