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Featured in JAMA Network Open, this study has found out that the covid-19 survivors may experience cognitive impairment or brain fog for several months following the treatment.
This study also uses the evidence from the previous works on long Covid. But this one stands out from the crowd because it also uses self-reported confirmation of SARS-CoV-2 infection and several other types of online questionnaires in order to assess the cognitive deficit. All involved people who were the test subjects underwent in-person psychological testing.
The researchers of the study made sure to use well-drafted and validated neuropsychological measures to explore attention, working memory, short-term memory, long-term memory, executive functioning, memory encoding, and recognition.
The participants of the study had no previous cases of dementia or other cognitive issues and the age group was between 18-49. All of the participants wither had serum antibody positivity or were tested positive for covid-19. Several other risk factors such as ethnicity, race, smoking, body mass index were controlled by the scientist.
The results of the study were that 24% of the participants suffer from memory encoding. 23% of the population suffered from memory recall and 18% showed signs of slow-progressing information speed.
According to Dr. Jacqueline Becker “Hospitalized patients had a higher frequency of impairment, but we also saw it in outpatients and those treated in the emergency department.”
This study showcased that the people who have recovered from covid-19 still suffered from cognitive impairment even after a span of 8 months.
Further study work to identify the risk factors and underlying mechanisms that are involved is still needed!