A study of 270 patients diagnosed with Long COVID found that 53% of patients had response times that were 2 standard deviations slower than the control mean after controlling for age-related decline and comorbidities. Cognitive slowing was also correlated with poor performance in sustained attention.
Read the study: Long COVID is associated with severe cognitive slowing: a multicentre cross-sectional study.
See also:
- List of studies about Long COVID
- 65 million people have long COVID
- 14% of US adults have had long COVID
Links to this note
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IQ Loss from COVID-19 Infection
A study of over 100,000 people in England found that found that cognitive deficits from COVID-19 infection (memory, reasoning and executive function) were similar between those whose symptoms resolved in less than 4 weeks and 12 weeks but were larger in those who had unresolved persistent symptoms (long COVID).