Browsing NTNU Open by Author "Hagen, Knut"
Now showing items 61-80 of 84
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Reliability of a self-administrated musculoskeletal questionnaire: The fourth Trøndelag health study
Dahl, Astri Grøtan; Havang, Sara; Hagen, Knut (Peer reviewed; Journal article, 2021)Background: The reliability of the Nordic Musculoskeletal Questionnaire (NMQ) has not been evaluated in an unselected general population. The aim of this population-based follow-up study was to estimate the reliability ... -
Remission of chronic headache: An 11-year follow-up study. Data from the Nord-Trøndelag Health Surveys 1995–1997 and 2006–2008
Hagen, Knut; Kristoffersen, Espen Saxhaug; Winsvold, Bendik K S; Stovner, Lars Jacob; Zwart, John-Anker (Journal article; Peer reviewed, 2018)Objectives To estimate remission rates of chronic headache and predictors of remission. Methods In this longitudinal population-based cohort study, we used validated headache questionnaire data from the second (1995–1997, ... -
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 ... -
The association between diabetes mellitus, glucose, and chronic musculoskeletal complaints. Results from the Nord-Trondelag Health Study
Hoff, Ole Martin; Midthjell, Kristian; Zwart, John-Anker; Hagen, Knut (Journal article; Peer reviewed, 2008)Background: The relationship between diabetes mellitus (DM) and chronic musculoskeletal complaints (MSCs) is unclear. The aim of this study was to investigate the association between DM, non-fasting glucose and chronic ... -
The bidirectional association between sleep problems and chronic musculoskeletal pain: influence of lifestyle, physical work exposure and systemic inflammation Prospective data from the HUNT Study and the Tromsø Study
Skarpsno, Eivind Schjelderup (Doctoral theses at NTNU;2019:350, Doctoral thesis, 2019) -
The causal role of smoking on the risk of headache. A Mendelian randomization analysis in the HUNT Study
Johnsen, Marianne Bakke; Winsvold, Bendik K S; Børte, Sigrid; Vie, Gunnhild Åberge; Pedersen, Linda Margareth; Storheim, Kjersti; Skorpen, Frank; Hagen, Knut; Bjørngaard, Johan Håkon; Åsvold, Bjørn Olav; Zwart, John-Anker (Journal article; Peer reviewed, 2018)Background and purpose Headache has been associated with various lifestyle and psychosocial factors, one of which is smoking. The aim of the present study was to investigate whether the association between smoking intensity ... -
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 epidemiology of headache disorders: a face-to-face interview of participants in HUNT4
Hagen, Knut; Åsberg, Anders Nikolai; Uhlig, Benjamin Langsæter; Tronvik, Erling Andreas; Brenner, Eiliv; Stjern, Marit; Helde, Grethe; Gravdahl, Gøril Bruvik; Sand, Trond (Journal article; Peer reviewed, 2018)Background The primary aim of this cross-sectional population-based study was to evaluate the 1-year prevalence of common headache disorders by a face-to-face interview. Methods The fourth wave of Nord-Trøndelag ... -
The epidemiology of INSOMNIA in the Nord-Trøndelag Health Study
Uhlig, Benjamin Langsæter (Doctoral theses at NTNU;2019:363, Doctoral thesis, 2019) -
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 C-reactive protein levels on headache frequency in the HUNT study 2006-2008
Hagen, Knut; Stovner, Lars Jacob; Nilsen, Kristian Bernhard; Kristoffersen, Espen Saxhaug; Winsvold, Bendik K S (Journal article; Peer reviewed, 2019)Background Increased high sensitivity C- reactive protein (hs-CRP) levels have been found in many earlier studies on migraine, and recently also in persons with migraine and insomnia. The aim of this study was to see ... -
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 joint effect of insomnia symptoms and lifestyle factors on risk of self-reported fibromyalgia in women: longitudinal data from the HUNT Study
Skarpsno, Eivind S.; Nilsen, Tom Ivar Lund; Sand, Trond; Hagen, Knut; Mork, Paul Jarle (Journal article; Peer reviewed, 2019)Objectives To investigate the association between insomnia symptoms and risk of self-reported fibromyalgia in women, and to explore whether leisure time physical activity and body mass index (BMI) modify this association ... -
The mortality of chronic widespread musculoskeletal complaints : a review of existing literature
Åsberg, Anders Nikolai (Master thesis, 2015)Kronisk utbredte muskelplager (CWMSC) forekommer hos ca. 20 % av den voksne befolkning, har stor innvirkning på livskvalitet og medfører store kostnader for samfunnet. Det har vært sprikende funn i studier som har vurdert ... -
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 between obstructive sleep apnea and insomnia: a population-based cross-sectional polysomnographic study.
Uhlig, Benjamin Langsæter; Hagen, Knut; Engstrøm, Morten; Stjern, Marit; Gravdahl, Gøril Bruvik; Sand, Trond (Journal article; Peer reviewed, 2018)Background The relationship between insomnia and objectively measured obstructive sleep apnea (OSA) severity has not previously been investigated in both genders in the general population. The main aim of this population-based ... -
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 ... -
Time trends of major headache diagnoses and predictive factors. Data from three Nord-Trøndelag health surveys
Hagen, Knut; Stovner, Lars Jacob; Zwart, John-Anker (Journal article; Peer reviewed, 2020)Aims The primary aim of this study was to investigate time trends of major headache diagnoses using cross-sectional data from two population-based health surveys. In addition, we aimed to perform a longitudinal assessment ... -
Validation of questionnaires for restless legs syndrome in the general population: the Trøndelag Health Study (HUNT)
Filosa, James; Omland, Petter Moe; Hagen, Knut; Langsrud, Knut; Brenner, Eiliv; Knutsen, Andreas; Drange, Ole Kristian; Gravdahl, Gøril Bruvik; Stjern, Marit; Engstrøm, Morten; Sand, Trond (Peer reviewed; Journal article, 2022)Questionnaires for restless legs syndrome have rarely been validated against face-to-face interviews in the general population. We aimed to validate the modified Norwegian, seven-item Cambridge-Hopkins restless legs syndrome ...