COVID-Related Cognitive Decline Predicted to Boost Global Dementia Rates
Cognitive decline is common after COVID-19 infection, in new findings that provide much-needed information on the long-term dynamic trajectory of cognitive changes after COVID-19. The findings are based on 1438 COVID-19 survivors (48% male; median age, 69 years), including 260 with severe illness and 1178 with nonsevere illness, discharged from three COVID-designated hospitals in Wuhan, as well as 438 uninfected controls (51% male; median age, 67 years). Before they were infected with COVID-19, none of the study participants had cognitive impairment; a concomitant neurological disorder or a family history of dementia; or severe cardiac, hepatic, or kidney disease or malignancy. At 12 months postdischarge, 12.5% of COVID-19 survivors had developed cognitive impairment, defined by a Telephone Interview of Cognitive Status-40 score (TICS-40) of 20 or lower.
@manpreet Cognitive complications are common in the acute phase of COVID-19. However, the long-term consequences of COVID-19 on cognition remain unclear. This study adds novel information about the dynamic change in the cognition of COVID-19 survivors, Wang told Medscape Medical News. Of note, say the researchers, is the fact that 21% of people with severe COVID-19 had progressive cognitive decline, suggesting that COVID-19 may cause long-lasting damage to cognition.