Acute COVID-19 severity and impaired cognitive function up to 32 months after diagnosis: an observational study

Abstract Background Cognitive dysfunction (“brain fog”) is a commonly reported post-COVID-19 symptom. Leveraging data from five general population cohorts across four European countries (Estonia, Iceland, Norway, and Sweden), we assessed long-term prevalence of impaired subjective cognitive function...

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Prif Awduron:	Ingibjörg Magnúsdóttir, Anders B. Nygaard, Asle Hoffart, Gillian Murphy, Kadri Kõiv, Mary M. Barker, Anikó Lovik, Anna Bára Unnarsdóttir, Anna K. Kähler, Arna Hauksdóttir, Edda Bjork Thordardottir, Elías Eyþórsson, Elísabet U. Gísladóttir, Emily E. Joyce, Emma M. Frans, Gunnar Tómasson, Harpa Lind Hjördísar Jónsdóttir, Harpa Rúnarsdóttir, Hrönn Harðardóttir, John Arne Dahl, Jóhanna Jakobsdóttir, Karl Trygve Kalleberg, Kristjana Hrönn Ásbjörnsdóttir, Merete Ellingjord-Dale, Mette S. Istre, Nils Inge Landrø, Qing Shen, Ragnhild Bø, Reedik Mägi, Runólfur Pálsson, Sonja Hjellegjerde Brunvoll, Sverre Urnes Johnson, Arne Søraas, Fang Fang, Kelli Lehto, Omid V. Ebrahimi, Thor Aspelund, Unnur Anna Valdimarsdóttir
Fformat:	Artigo
Iaith:	Inglês
Cyhoeddwyd:	BMC 2026-04-01
Cyfres:	BMC Medicine
Pynciau:	Cognitive function Long covid Brain fog Cohort COVID-19 Post-COVID-19 condition
Mynediad Ar-lein:	https://doi.org/10.1186/s12916-026-04856-2
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