Abstract
Introduction: Coronavirus disease 2019 (COVID-19), a global pandemic, has infected approximately 10% of the world's population. This comprehensive review aims to determine the prevalence of various neurological disorders in COVID-19 without overlapping meta-analysis errors.
Methods: We searched for meta-analyses on neurologic disorders following COVID-19 published up to March 14, 2023. We obtained 1,184 studies, of which 44 meta-analyses involving 9,228,588 COVID-19 patients were finally included. After confirming the forest plot of each study and removing overlapping individual studies, a re-meta-analysis was performed using the random effect model.
Results: The summarized combined prevalence of each neurological disorder is as follows: stroke 3.39%(95% confidence interval, 1.50-5.27), dementia 6.41%(1.36-11.46), multiple sclerosis 4.00%(2.50-5.00), epilepsy 5.36%(-0.60-11.32), Parkinson's disease 0.67%(-1.11-2.45), encephalitis 0.66%(-0.44-1.77) and Guillain–Barré syndrome 3.83%(-0.13-7.80). In addition, the mortality risk of patients with co-morbidities of COVID-19 is as follows: stroke OR 1.63(1.23-2.03), epilepsy OR 1.71(1.00-2.42), dementia OR 1.90(1.31-2.48), Parkinson's disease OR 3.94(-2.12-10.01).
Conclusion: Our results show that the prevalence and mortality risk may increase in some neurological diseases during the COVID-19 pandemic. Future studies should elucidate the precise mechanisms for the link between COVID-19 and neurological diseases, determine which patient characteristics predispose them to neurological diseases, and consider potential global patient management.
S. Karger AG, Basel
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