GCS-neuro-COVID: Neurologic manifestations and outcomes in children with and without comorbidities

ABSTRACT

INTRODUCTION: Children with comorbidities are at increased risk of severe disease due to SARS-CoV-2 (COVID-19) infection and Multisystem Inflammatory Syndrome-Children (MIS-C). We hypothesized that children with comorbidities hospitalized with COVID-19 or MIS-C will experience more neurologic manifestations and worse outcomes compared to children without comorbidities. METHODS: Secondary study of the Global Consortium Study of Neurological Dysfunction in COVID-19 (GCS-NeuroCOVID) study, a multinational study enrolling children < 18 years of age hospitalized with confirmed/presumed COVID-19 or MIS-C. Neurological manifestations, lengths of hospital and intensive care unit (ICU) stay, hospital disposition and mortality were analyzed by comorbidity status. A multivariable logistic regression was performed to analyze the association of comorbidity with neurologic manifestation. RESULTS: Overall, 824 (55%) children had any comorbidity and 646 (43%) had any neurologic manifestation. Children with comorbidity were older (median [interquartile range] 9.5 [4-15] vs. 6.4 [0.5-12], had more COVID-19 (58%) vs. MIS-C (32%) and ICU admissions (39% vs. 29%), and longer hospital length of stay (9 [2-9] vs. 5 [2-6] days), all p< .001;mortality was similar (1.5% vs. 0.5%, p=.067). The most common comorbidities were neurologic and respiratory (20% each). Children with comorbidity more frequently had any neurologic manifestation (61% vs. 39%), and seizures/status epilepticus (11% vs. 4%), p< .001). There were no differences between comorbidity vs no comorbidity groups for the most common neurologic manifestations including headache (21% vs. 20%) and acute encephalopathy (17% vs. 15%). Older age (odds ratio 1.1 [95% confidence interval 1.1-1.1]), ICU stay (2.6 [1.9-3.4]), MIS-C (2.2 [1.5-3.2]), and neurologic (2.8 [1.9-4.1]) comorbidity were associated with neurologic manifestation while cardiovascular morbidity was protective for neurologic manifestation (.5 [.3-.8]), all p< .05. CONCLUSIONS: Children with comorbidity, especially neurologic, who are hospitalized with COVID-19 related conditions are at increased risk of neurologic manifestations. Assessment of post-hospital neurodevelopmental outcomes to determine the impact of neurologic manifestations in children with comorbidity and COVID-19 related conditions is critically needed.