167 Papers
640 Citations
Knut Hagen is an academic researcher from Norwegian University of Science and Technology. The author has contributed to research in topics: Migraine & Population. The author has an hindex of 46, co-authored 156 publications. Previous affiliations of Knut Hagen include Oslo University Hospital.
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Papers
Anxiety, depression and behavioral problems among adolescents with recurrent headache: the Young-HUNT study.
Brit Andenes Blaauw,Grete Dyb,Knut Hagen,Turid Lingaas Holmen,Mattias Linde,Tore Wentzel-Larsen,John-Anker Zwart,John-Anker Zwart +7 more
TL;DR: The results from the present study indicate that both anxiety and depressive symptoms and behavioral problems are associated with recurrent headache, and should accordingly be considered a part of the clinical assessment of children and adolescents with headache.
Validation of insomnia questionnaires in the general population: The Nord-Trøndelag Health Study (HUNT).
James Filosa,Petter Moe Omland,Knut Langsrud,Knut Hagen,Morten Engstrøm,Ole Kristian Drange,Andreas Jarlalein Knutsen,Eiliv Brenner,Håvard Kallestad,Trond Sand +9 more
TL;DR: The primary aim was to validate questionnaire‐based insomnia diagnoses from a modified Karolinska Sleep Questionnaire and the Insomnia Severity Index, by age category, against a semi‐structured face‐to‐face interview and to compare prevalence estimates of questionnaire‐ and interview‐based diagnoses.
The epidemiology of headache disorders: a face-to-face interview of participants in HUNT4
Knut Hagen,Anders Nikolai Åsberg,Benjamin Langsæter Uhlig,Erling Tronvik,Eiliv Brenner,Marit Stjern,Grethe Helde,Gøril Bruvik Gravdahl,Trond Sand +8 more
TL;DR: In this population-based cross-sectional headache study performed by a face-to-face interview, the 1-year prevalence of TTH was 43.1% and of idiopathic stabbing headache 34.1%, whereas the lifetime prevalence of migraine was 32.8%.
Time trends in the prevalence of headache disorders. The Nord-Trondelag Health Studies (HUNT 2 and HUNT 3)
TL;DR: Apart from a small increase of migraine, headache prevalences remained essentially stable among adults in a Norwegian county during an 11-year period.
The association between diabetes mellitus, glucose, and chronic musculoskeletal complaints. Results from the Nord-Trøndelag Health Study
TL;DR: In this cross-sectional study a high non-fasting glucose was associated with lower prevalence of chronic MSCs, and among individuals with known DM chronic widespread M SCs were more likely.