• Prolonged migraine aura: New insights from a prospective diary-aided study 

      Viana, Michele; Sances, Grazia; Linde, Mattias; Nappi, Giuseppe; Khaliq, Farihah; Goadsby, Peter J.; Tassorelli, Cristina (Journal article; Peer reviewed, 2018)
      Background: There is limited literature on prolonged aura (PA - defined as an aura including at least one symptom for > 1 h and < 7d), and there are no prospective studies. The aim of this study is to characterize prospectively ...
    • Sleep quality, arousal and pain thresholds in migraineurs: a blinded controlled polysomnographic study 

      Engstrøm, Morten; Hagen, Knut; Bjørk, Marte Helene; Stovner, Lars Jacob; Gravdahl, Gøril Bruvik; Stjern, Marit; Sand, Trond (Journal article; Peer reviewed, 2013)
      Background Our aim was to compare subjective and objective sleep quality and arousal in migraine and to evaluate the relationship between sleep quality and pain thresholds (PT) in controls, interictal, preictal and postictal ...
    • Sleep-related and non-sleep-related migraine: interictal sleep quality, arousals and pain thresholds 

      Engstrøm, Morten; Hagen, Knut; Bjørk, Marte Helene; Gravdahl, Gøril Bruvik; Sand, Trond (Journal article; Peer reviewed, 2013)
      Background The mechanisms associating sleep and migraine are unknown. No previous polysomnographic (PSG) or pain-threshold (PT) study has compared patients with sleep-related migraine attacks (SM), non-sleep related ...
    • Sociodemographic differences in medication use, health-care contacts and sickness absence among individuals with medication-overuse headache 

      Jonsson, Pernilla; Linde, Mattias; Hensing, Gunnel; Hedenrud, Tove (Journal article; Peer reviewed, 2012)
      The objective of this study was to analyse sociodemographic differences in medication use, health-care contacts and sickness absence among individuals with medication-overuse headache (MOH). A cross-sectional, population ...
    • The association between migraine and physical exercise 

      Amin, Faisal Mohammad; Aristeidou, Stavroula; Baraldi, Carlo; Czapinska-Ciepiela, Ewa K.; Ariadni, Daponte D.; Di Lenola, Davide; Fenech, Cherilyn; Kampouris, Konstantinos; Karagiorgis, Giorgos; Braschinsky, Mark; Linde, Mattias (Journal article; Peer reviewed, 2018)
      Background There is an unmet need of pharmacological and non-pharmacological treatment options for migraine patients. Exercise can be used in the treatment of several pain conditions, including. However, what exact role ...
    • The burden of headache disorders in India: methodology and questionnaire validation for a community-based survey in Karnataka State 

      Rao, GN; Kulkarni, GB; Gururaj, Gopalakrishna; Rajesh, K; Subbakrishna, DK; Steiner, Timothy J.; Stovner, Lars Jacob (Journal article; Peer reviewed, 2012)
      Primary headache disorders are a major public-health problem globally and, possibly more so, in low- and middle-income countries. No methodologically sound studies of prevalence and burden of headache in the adult Indian ...
    • The burden of headache disorders in the Eastern Mediterranean Region, 1990-2016: Findings from the Global Burden of Disease study 2016 

      Vosoughi, Kia; Stovner, Lars Jacob; Steiner, Timothy J.; Moradi-Lakeh, Maziar; Fereshtehnejad, Seyed-Mohammad; Farzadfar, Farshad; Heydarpour, Pouria; Malekzadeh, Reza; Naghavi, Mohsen; Sahraian, Mohammad Ali; Sepanlou, Sadaf G.; Tehrani-Banihashemi, Arash; Majdzadeh, Reza; Feigin, Valery L.; Vos, Theo; Mokdad, Ali H.; Murray, Christopher J.L. (Journal article; Peer reviewed, 2019)
      Objectives Using the findings of the Global Burden of Disease Study (GBD), we report the burden of primary headache disorders in the Eastern Mediterranean Region (EMR) from 1990 to 2016. Methods We modelled headache ...
    • The crossover design for migraine preventives: an analyses of four randomized placebo-controlled trials 

      Astrid Bjørke, Jenssen; Stovner, Lars Jacob; Tronvik, Erling Andreas; Sand, Trond; Helde, Grethe; Gravdahl, Gøril Bruvik; Hagen, Knut (Journal article; Peer reviewed, 2019)
      Aims To evaluate the crossover design in migraine preventive treatment trials by assessing dropout rate, and potential period and carryover effect in four placebo-controlled randomized controlled trials (RCTs). Methods In ...
    • The HUNT4 study: the validity of questionnaire-based diagnoses 

      Hagen, Knut; Åsberg, Anders Nikolai; Uhlig, Benjamin Langsæter; Tronvik, Erling Andreas; Brenner, Eiliv; Sand, Trond (Journal article; Peer reviewed, 2019)
      Background Questionnaire-based headache diagnoses should be validated against diagnoses made by the gold standard, which is personal interview by a headache expert. The diagnostic algorithm with the best diagnostic accuracy ...
    • The impact of headache and chronic musculoskeletal complaints on the risk of insomnia: longitudinal data from the Nord-Trondelag health study 

      Ødegård, Siv Steinsmo; Sand, Trond; Engstrøm, Morten; Zwart, John-Anker; Hagen, Knut (Journal article; Peer reviewed, 2013)
      Background A strong relationship between insomnia and painful disorders has been found, but it is still unclear whether chronic pain leads to insomnia. There is a need of large-scale prospective studies to evaluate if ...
    • The impact of headache in Europe: principal results of the Eurolight project 

      Steiner, Timothy J.; Stovner, Lars Jacob; Katsarava, Zaza; Lainez, Jose Miguel; Lampl, Christian; Lanteri-Minet, Michel; Rastenyte, Daiva; Ruiz de la Torre, Elena; Tassorelli, Cristina; Barre, Jessica; Andree, Colette (Journal article; Peer reviewed, 2014)
      Background European data, at least from Western Europe, are relatively good on migraine prevalence but less sound for tension-type headache (TTH) and medication-overuse headache (MOH). Evidence on impact of headache ...
    • The methodology of population surveys of headache prevalence, burden and cost: Principles and recommendations from the Global Campaign against Headache 

      Stovner, Lars Jacob; Al Jumah, Mohammed A; Birbeck, Gretchen; Gururaj, Gopalakrishna; Jensen, Rigmor; Katsarava, Zaza; Queiroz, Luiz Paulo; Scher, AI; Tekle-Haimanot, Redda; Wang, Shuu-Jiun; Steiner, Timothy J. (Journal article; Peer reviewed, 2014)
      The global burden of headache is very large, but knowledge of it is far from complete and needs still to be gathered. Published population-based studies have used variable methodology, which has influenced findings and ...
    • The relationship between headache and religious attendance (the Nord-Trøndelag health study-HUNT) 

      Tronvik, Erling; Sørensen, Torgeir; Linde, Mattias; Bendtsen, Lars; Artto, Ville; Laurell, Katarina; Kallela, Mikko; Zwart, John-Anker; Hagen, Knut (Journal article; Peer reviewed, 2014)
      Background Religious belief can be used as a pain coping strategy. Our purpose was to evaluate the relationship between headache and religious activity using prospective data from a large population-based study. Meth ...
    • The relationship of anxiety, depression and behavioral problems with recurrent headache in late adolescence - a Young-HUNT follow-up study 

      Blaauw, Brit Andenes; Dyb, Grete; Hagen, Knut; Holmen, Turid Lingaas; Linde, Mattias; Wentzel-Larsen, Tore; Zwart, John-Anker (Journal article; Peer reviewed, 2015)
      Background The comorbidity of headache and psychiatric symptoms is a well-recognized clinical phenomenon, but there are only limited data regarding the temporal relationship between headache and symptoms of anxiety and ...
    • A universal outcome measure for headache treatments, care-delivery systems and economic analysis 

      Steiner, Timothy J; Linde, Mattias; Schnell-Inderst, Petra (Peer reviewed; Journal article, 2021)
      Background The first manuscript in this series delineated a model of structured headache services, potentially cost-effective but requiring formal cost-effectiveness analysis (CEA). We envisaged a need for a new outcome ...
    • Will (or can) people pay for headache care in a poor country? 

      Lampl, Christian; Steiner, Timothy J.; Mueller, T; Mirvelashvili, E; Djibuti, M; Kukava, M; Dzagnidze, A; Jensen, Rigmor; Stovner, Lars Jacob; Katzarava, Zaza (Journal article; Peer reviewed, 2012)
      We asked whether attempts to introduce headache services in poor countries would be futile on grounds of cost and unsustainability. Using data from a population-based survey in the Republic of Georgia, an exemplary poor ...