Browsing NTNU Open by Author "Zwart, John-Anker"
Now showing items 1-20 of 59
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A 4-year follow-up of patients with medication-overuse headache previously included in a randomized multicentre study
Hagen, Knut; Albretsen, Claus; Vilming, Steinar; Salvesen, Rolf; Grønning, Marit; Helde, Grethe; Gravdahl, Gøril Bruvik; Zwart, John-Anker; Stovner, Lars Jacob (Journal article; Peer reviewed, 2011) -
A Comparison of Anthropometric Measures for Assessing the Association between Body Size and Risk of Chronic Low Back Pain: TheHUNT Study
HEUCH, INGRID; Heuch, Ivar; Hagen, Knut; Zwart, John-Anker (Journal article, 2015)Background: Previous work indicates that overweight and obese individuals carry an increased risk of experiencing chronic low back pain (LBP). It is not known, however, how the association with body size depends on the ... -
A tonic heat test stimulus yields a larger and more reliable conditioned pain modulation effect compared to a phasic heat test stimulus
Lie, Marie; Matre, Dagfinn; Hansson, Per; Stubhaug, Audun; Zwart, John-Anker; Nilsen, Kristian Bernhard (Journal article; Peer reviewed, 2017)Introduction: The interest in conditioned pain modulation (CPM) as a clinical tool for measuring endogenously induced analgesia is increasing. There is, however, large variation in the CPM methodology, hindering comparison ... -
Age of menarche is associated with knee joint replacement due to primary osteoarthritis (The HUNT Study and the Norwegian Arthroplasty Register)
Hellevik, Alf Inge; Nordsletten, Lars; Johnsen, Marianne Bakke; Fenstad, Anne Marie; Furnes, Ove; Storheim, Kjersti; Zwart, John-Anker; Flugsrud, Gunnar B; Langhammer, Arnulf (Journal article; Peer reviewed, 2017)Objective To investigate whether parity, age at menarche, menopausal status, age at menopause, use of oral contraceptives (OC) or use of hormone replacement therapy (HRT) were associated with total knee replacement (TKR) ... -
Anxiety, depression and behavioral problems among adolescents with recurrent headache: the Young-HUNT study
Blaauw, Brit Andenes; Dyb, Grete; Hagen, Knut; Holmen, Turid Lingaas; Linde, Mattias; Wentzel-Larsen, Tore; Zwart, John-Anker (Journal article; Peer reviewed, 2014)Background It is well documented that both anxiety and depression are associated with headache, but there is limited knowledge regarding the relation between recurrent primary headaches and symptoms of anxiety and ... -
Association between blood pressure measures and recurrent headache in adolescents: cross-sectional data from the HUNT-Youth study
Tronvik, Erling; Zwart, John-Anker; Hagen, Knut; Dyb, Grete; Holmen, Turid Lingaas; Stovner, Lars Jacob (Journal article; Peer reviewed, 2011)The relationship between blood pressure and headache in youth has not been explored and the objective of the present study was to provide data on this association in an adolescent population. Cross-sectional data from a ... -
Association between body height and chronic low back pain: a follow-up in the Nord-Trøndelag Health Study.
HEUCH, INGRID; Heuch, Ivar; Hagen, Knut; Zwart, John-Anker (Journal article; Peer reviewed, 2015)Objective To study potential associations between body height and subsequent occurrence of chronic low back pain (LBP). Design Prospective cohort study. Setting The North-Trøndelag Health Study (HUNT). Data ... -
The association between insomnia, c-reactive protein, and chronic low back pain: Cross-sectional analysis of the HUNT study, Norway
Ho, Kevin Kwan Ngai; Simic, Milena; Småstuen, Milada Cvancarova; de Barros Pinheiro, Marina; Ferreira, Paulo Herrique; Johnsen, Marianne Bakke; Heuch, Ingrid; Grotle, Margreth; Zwart, John-Anker; Nilsen, Kristian Bernhard (Peer reviewed; Journal article, 2019)Chronic low back pain (chronic LBP) is the number one cause for years lived with disability among 301 diseases and injuries analyzed by The Global Burden of Disease study 2013. Insomnia is highly prevalent among people ... -
Association of Modic change types and their short tau inversion recovery signals with clinical characteristics : a cross sectional study of chronic low back pain patients in the AIM-study
Bråten, Lars Christian Haugli; Schistad, Ellina Iordanova; Espeland, Ansgar; Kristoffersen, Per M; Haugen, Anne Julsrud; Marchand, Gunn Hege; Vetti, Nils; Pripp, Are Hugo; Kadar, Thomas; Skouen, Jan Sture; Grotle, Margreth; Grøvle, Lars; Zwart, John-Anker; Brox, Jens Ivar; Storheim, Kjersti (Peer reviewed; Journal article, 2020)Background - Modic Changes (MCs, magnetic resonance imaging (MRI) signal changes in the vertebral bone marrow extending from the vertebral endplate) may represent a subgroup of nonspecific chronic low back pain that could ... -
Association studies of up to 1.2 million individuals yield new insights into the genetic etiology of tobacco and alcohol use
Liu, Ming; Jiang, Yu; Wedow, Robbee; Li, Yue; Brazel, David M.; Chen, Fang; Datta, Gargi; Davila-Velderrain, Jose; Mitchell, Amy; Skogholt, Anne Heidi; Sivertsen, Børge; Stordal, Eystein; Morken, Gunnar; Kallestad, Håvard; Heuch, Ingrid; Zwart, John-Anker; Fjukstad, Katrine Kveli; Pedersen, Linda Margareth; Johnsen, Marianne Bakke; Skrove, Marit Synnøve; Indredavik, Marit Sæbø; Drange, Ole Kristian; Bjerkeset, Ottar; Børte, Sigrid; Stensland, Synne; Choquet, Hélène; Docherty, Anna R.; Faul, Jessica D.; Foerster, Johanna R.; Fritsche, Lars; Gabrielsen, Maiken Elvestad; Gordon, Scott D.; Haessler, Jeffrey; Hottenga, Jouke-Jan; Huang, Hongyan; Jang, Seon-Kyeong; Jansen, Philip R.; Ling, Yueh; Mägi, Reedik; Matoba, Nana; McMahon, George; Mulas, Antonella; Orrú, Valeria; Palviainen, Teemu; Pandit, Anita; Reginsson, Gunnar W.; Smith, Jennifer A.; Taylor, Amy E.; Turman, Constance; Willemsen, Gonneke; Young, Hannah; Young, Kendra A.; Zajac, Gregory J.M.; Zhao, Wei; Zhou, Wei; Björnsdóttir, Gyda Thora; Boardman, Jason D.; Boehnke, Michael; Boomsma, Dorret I.; Chen, Chu; Davies, Gareth E.; Eaton, Charles B.; Winsvold, Bendik K S; Hveem, Kristian; Vrieze, Scott (Journal article; Peer reviewed, 2019)Tobacco and alcohol use are leading causes of mortality that influence risk for many complex diseases and disorders1. They are heritable2,3 and etiologically related4,5 behaviors that have been resistant to gene discovery ... -
Associations between the number of children, age at childbirths and prevalence of chronic low back pain: the Nord- Trøndelag Health Study
Heuch, Ingrid; Heuch, Ivar; Hagen, Knut; Storheim, Kjersti; Zwart, John-Anker (Peer reviewed; Journal article, 2020)Background Associations between childbirths and subsequent risk of low back pain (LBP) have not been clarified. Changes in sex hormone levels or lumbar posture during pregnancy may have an impact on LBP later in life. ... -
Biological and Clinical Insights From Genetics of Insomnia Symptoms
Lane, Jacqueline M.; Jones, Samuel E.; Skogholt, Anne Heidi; Gabrielsen, Maiken Elvestad; Hveem, Kristian; Brumpton, Ben Michael; Zwart, John-Anker; Nielsen, Jonas Bille; Winswold, Bendik; Willer, Cristen J; Janszky, Imre; Johnsen, Marianne Bakke; Wood, Andrew R.; Strand, Linn B.; Bowden, Jack; Song, Yanwei; Patel, Krunal; Anderson, Simon G.; Beaumont, Robin N.; Bechtold, David A.; Cade, Brian E.; Kathiresan, Sekar; Little, Max A.; Loudon, Andrew S.; Purcell, Shaun; Richmond, Rebecca C.; Schormair, Barbara; Tyrrell, Jessica; Winkelmann, Juliane; Zhao, Cheng; Redline, Susan; Spiegelhalder, Kai; Kyle, Simon D.; Frayling, Timothy M.; Lawlor, Deborah A.; Rutter, Martin K.; Weedon, Michael N.; Saxena, Richa (Journal article; Peer reviewed, 2019)Insomnia is a common disorder linked with adverse long-term medical and psychiatric outcomes. The underlying pathophysiological processes and causal relationships of insomnia with disease are poorly understood. Here we ... -
Caesarean section and the association with migraine: a retrospective register-linked HUNT population cohort study
Kristoffersen, Espen Saxhaug; Børte, Sigrid; Hagen, Knut; Zwart, John-Anker; Winsvold, Bendik K S (Peer reviewed; Journal article, 2020)Objectives To evaluate the association between caesarean section and migraine in a population-based register-linked cohort study. Setting Data from the population-based Nord-Trøndelag Health Studies (HUNT2 and HUNT3) ... -
Clinical effect modifiers of antibiotic treatment in patients with chronic low back pain and Modic changes - Secondary analyses of a randomised, placebo-controlled trial (the AIM study)
Bråten, Lars Christian Haugli; Grøvle, Lars; Espeland, Ansgar; Pripp, Are Hugo; Grotle, Margreth; Hellum, Christian; Haugen, Anne Julsrud; Froholdt, Anne; Rolfsen, Mads Peder; Nygaard, Øystein Petter; Lutro, Olav; Kristoffersen, Per M; Anke, Audny; Schistad, Ellina Iordanova; Skouen, Jan Sture; Brox, Jens Ivar; Zwart, John-Anker; Storheim, Kjersti (Peer reviewed; Journal article, 2020)Background Randomised trials on antibiotic treatment for patients with chronic low back pain and vertebral endplate changes visible on MRI (Modic changes) have shown mixed results. A possible explanation might be a real ... -
Depression and anxiety in relation to catechol-O-methyltransferase Val158Met genotype in the general population: The Nord-Trøndelag Health Study (HUNT)
Bækken, Petter; Skorpen, Frank; Stordal, Eystein; Zwart, John-Anker; Hagen, Knut (Journal article; Peer reviewed, 2008)Background: The catechol-O-methyltransferase (COMT) gene contains a functional polymorphism, Val158Met, which has been linked to anxiety and depression, but previous results are not conclusive. The aim of the present ... -
Development and validation of a prediction model for incident hand osteoarthritis in the HUNT study
Johnsen, Marianne Bakke; Magnusson, Karin; Børte, Sigrid; Gabrielsen, Maiken Elvestad; Winsvold, Bendik K S; Skogholt, Anne Heidi; Thomas, Laurent; Storheim, Kjersti; Hveem, Kristian; Zwart, John-Anker (Peer reviewed; Journal article, 2020)Objective To develop and externally validate prediction models for incident hand osteoarthritis (OA) in a large population-based cohort of middle aged and older men and women. Design We included 17,153 men and 18,682 ... -
Do abnormal serum lipid levels increase the risk of chronic low back pain? The Nord-Trøndelag Health Study
HEUCH, INGRID; Heuch, Ivar; Hagen, Knut; Zwart, John-Anker (Journal article; Peer reviewed, 2014)Background: Cross-sectional studies suggest associations between abnormal lipid levels and prevalence of low back pain (LBP), but it is not known if there is any causal relationship. Objective: The objective was to ... -
Do incident musculoskeletal complaints influence mortality? The Nord-Trøndelag Health study
Åsberg, Anders Nikolai; Hagen, Knut; Stovner, Lars Jacob; HEUCH, INGRID; Zwart, John-Anker; Winsvold, Bendik K S (Journal article; Peer reviewed, 2018)Background Musculoskeletal complaints (MSC) are common in the general population, causing a major disease burden to the individual and society. The association between MSC and mortality is still unclear. To our knowledge, ... -
Does diabetes influence the probability of experiencing chronic low back pain? A population-based cohort study: the Nord-Trøndelag Health Study
Heuch, Ingrid; Heuch, Ivar; Hagen, Knut; Sørgjerd, Elin Pettersen; Åsvold, Bjørn Olav; Zwart, John-Anker (Journal article; Peer reviewed, 2019)Objective Low back pain (LBP) is a major problem in modern society and it is important to study possible risk factors for this disorder. People with diabetes are often affected by LBP, but whether diabetes represents a ... -
Effect of Arthroplasty vs Fusion for Patients With Cervical Radiculopathy: A Randomized Clinical Trial
Johansen, Tonje Okkenhaug; Sundseth, Jarle Østberg; Fredriksli, Oddrun; Andresen, Hege; Zwart, John-Anker; Kolstad, Frode; Pripp, Are Hugo; Gulati, Sasha; Nygaard, Øystein Petter (Peer reviewed; Journal article, 2021)Surgical treatment for cervical radiculopathy is increasing. Treatment with motion preserving anterior cervical disc arthroplasty was introduced to prevent symptomatic adjacent segment disease, and there is need to evaluate ...