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Open Access
Peer-reviewed
Research Article
Psychiatric health of Icelandic adults 40 years or older: A nationwide study of diagnoses, medications, and symptoms
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Inga Wessman ,
Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Methodology, Visualization, Writing – original draft, Writing – review & editing
* E-mail: inga.wessman@gmail.com
Affiliation Department of Psychology, University of Iceland, Reykjavík, Iceland
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Lauren P. Wadsworth,
Roles Conceptualization, Methodology, Writing – original draft, Writing – review & editing
Affiliation Genesee Valley Psychology, Rochester, New York, United States of America
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Lárus Steinþór Guðmundsson,
Roles Conceptualization, Formal analysis, Methodology, Writing – review & editing
Affiliation Department of Pharmaceutical Sciences, University of Iceland, Reykjavík, Iceland
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Þorvarður Jón Löve,
Roles Conceptualization, Data curation, Formal analysis, Methodology, Supervision, Writing – review & editing
Affiliations Department of Medicine, University of Iceland, Reykjavík, Iceland, Landspítali – The National University Hospital of Iceland, Reykjavík, Iceland
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Sæmundur Rögnvaldsson,
Roles Conceptualization, Methodology, Writing – review & editing
Affiliations Department of Medicine, University of Iceland, Reykjavík, Iceland, Landspítali – The National University Hospital of Iceland, Reykjavík, Iceland
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Guðmundur Bjarni Arnkelsson,
Roles Conceptualization, Formal analysis, Methodology, Visualization, Writing – review & editing
Affiliation Department of Psychology, University of Iceland, Reykjavík, Iceland
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Andri Ólafsson,
Roles Investigation, Writing – review & editing
Affiliation Department of Medicine, University of Iceland, Reykjavík, Iceland
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Sigrún Þorsteinsdóttir,
Roles Conceptualization, Methodology, Writing – review & editing
Affiliations Department of Medicine, University of Iceland, Reykjavík, Iceland, Rigshospitalet, Copenhagen, Denmark
⨯ - Björn Leví Gunnarsson,
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Guðrún Ásta Sigurðardóttir,
Roles Investigation, Writing – review & editing
Affiliation Department of Medicine, University of Iceland, Reykjavík, Iceland
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Nicholas J. Sibrava,
Roles Conceptualization, Methodology, Writing – review & editing
Affiliation Baruch College – City University of New York, New York, New York, United States of America
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Ásdís Rósa Þórðardóttir,
Roles Data curation, Investigation, Project administration, Writing – review & editing
Affiliation Department of Medicine, University of Iceland, Reykjavík, Iceland
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Gauti Kjartan Gíslason,
Roles Data curation, Formal analysis, Methodology, Validation, Writing – review & editing
Affiliation Department of Medicine, University of Iceland, Reykjavík, Iceland
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Tinna Laufey Ásgeirsdóttir,
Roles Conceptualization, Methodology, Writing – review & editing
Affiliation Department of Economics, University of Iceland, Reykjavík, Iceland
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Sigurður Yngvi Kristinsson ,
Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Methodology, Resources, Supervision, Writing – review & editing
¶☯ Equal contributors.
Affiliations Department of Medicine, University of Iceland, Reykjavík, Iceland, Landspítali – The National University Hospital of Iceland, Reykjavík, Iceland
⨯ - [ ... ],
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Andri S. Bjornsson
Roles Conceptualization, Formal analysis, Funding acquisition, Methodology, Supervision, Writing – review & editing
¶☯ Equal contributors.
Affiliation Department of Psychology, University of Iceland, Reykjavík, Iceland
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Psychiatric health of Icelandic adults 40 years or older: A nationwide study of diagnoses, medications, and symptoms
- Inga Wessman,
- Lauren P. Wadsworth,
- Lárus Steinþór Guðmundsson,
- Þorvarður Jón Löve,
- Sæmundur Rögnvaldsson,
- Guðmundur Bjarni Arnkelsson,
- Andri Ólafsson,
- Sigrún Þorsteinsdóttir,
- Björn Leví Gunnarsson,
- Guðrún Ásta Sigurðardóttir
- Published: April 15, 2026
- https://doi.org/10.1371/journal.pone.0342075