Blar i Bergen Open Research Archive på forfatter "Kristoffersen, Espen Saxhaug"

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    • COL11A1 is associated with developmental dysplasia of the hip and secondary osteoarthritis in the HUNT study 

      Jacobsen, Kaya Kvarme; Børte, Sigrid; Laborie, Lene Bjerke; Kristiansen, Hege; Schäfer, Annette; Gundersen, Trude; Zayats, Tetyana; Winsvold, Bendik Kristoffer Slagsvold; Karen, Rosendahl; Martinsen, Amy; Skogholt, Anne Heidi; Brumpton, Ben Michael; Willer, Cristen J; Fors, Egil Andreas; Kristoffersen, Espen Saxhaug; Heuch, Ingrid; Mundal, Ingunn Pernille; Zwart, John Anker Henrik; Nielsen, Jonas B.; Storheim, Kjersti; Hagen, Knut; Nilsen, Kristian Bernhard; Hveem, Kristian; Fritsche, Lars G; Thomas, Laurent Francois; Pedersen, Linda Margareth; Gabrielsen, Maiken Elvestad; Lie, Marie U.; Stensland, Synne; Zhou, Wei (Journal article; Peer reviewed, 2024)
      Objective: Developmental dysplasia of the hip (DDH) is a congenital condition affecting 2-3% of all infants. DDH increases the risk of osteoarthritis, is the cause of 30% of all total hip arthroplasties (THAs) in adults ...

    • Dissecting the shared genetic basis of migraine and mental disorders using novel statistical tools 

      Bahrami, Shahram; Hindley, Guy Frederick Lanyon; Winsvold, Bendik K S; O'Connell, Kevin S; Frei, Oleksandr; Shadrin, Alexey; Cheng, Weiqiu; Bettella, Francesco; Rødevand, Linn; Ødegaard, Ketil Joachim; Fan, Chun C; Pirinen, Matti J; Hautakangas, Heidi M; Martinsen, Amy; Skogholt, Anne Heidi; Brumpton, Ben Michael; Willer, Cristen J; Tronvik, Erling Andreas; Kristoffersen, Espen Saxhaug; Zwart, John Anker Henrik; Nielsen, Jonas Bille; Hagen, Knut; Nilsen, Kristian Bernhard; Hveem, Kristian; Stovner, Lars Jacob; Fritsche, Lars; Thomas, Laurent; Pedersen, Linda Margareth; Gabrielsen, Maiken Elvestad; Johnsen, Marianne Bakke; Lie, Marie; Holmen, Oddgeir Lingaas; Børte, Sigrid; Stensland, Synne; Zhou, Wei; Dale, Anders; Djurovic, Srdjan; Smeland, Olav Bjerkehagen; Andreassen, Ole (Journal article; Peer reviewed, 2022)
      Migraine is three times more prevalent in people with bipolar disorder or depression. The relationship between schizophrenia and migraine is less certain although glutamatergic and serotonergic neurotransmission are ...

    • Management of cluster headache and other trigeminal autonomic cephalalgias in pregnancy and breastfeeding 

      Bjørk, Marte-Helene; Kristoffersen, Espen Saxhaug; Tronvik, Erling Andreas; Nordeng, Hedvig Marie Egeland (Journal article; Peer reviewed, 2021)
      Many clinicians lack experience in managing trigeminal autonomic cephalalgias (TACs) in pregnancy and lactation. In addition to cluster headache, TACs include hemicrania continua, paroxysmal hemicrania, and short-lasting ...

    • Migraine, tension-type headache and medication-overuse headache in a large population of shift working nurses: a cross-sectional study in Norway 

      Bjorvatn, Bjørn; Pallesen, Ståle; Moen, Bente Elisabeth; Waage, Siri; Kristoffersen, Espen Saxhaug (Peer reviewed; Journal article, 2018)
      Objectives: To investigate associations between different types of headaches and shift work. Design, participants and outcome measures: Nurses with different work schedules (day work, two-shift rotation, night work, ...

    • The Norwegian PraksisNett: a nationwide practice-based research network with a novel IT infrastructure 

      Kristoffersen, Espen Saxhaug; Bjorvatn, Bjørn; Halvorsen, Peder Andreas; Nilsen, Stein; Fossum, Guro Haugen; Fors, Egil Andreas; Jørgensen, Pål; Øxnevad-Gundersen, Berit; Gjelstad, Svein; Bellika, Johan Gustav; Straand, Jørund; Rørtveit, Guri (Journal article; Peer reviewed, 2022)
      Clinical research in primary care is relatively scarce. Practice-based research networks (PBRNs) are research infrastructures to overcome hurdles associated with conducting studies in primary care. In Norway, almost all ...

    • Self-reported sleeplessness in 12,655 persons living in the north of Norway: The Tromsø Study. 

      Fetveit, Arne; Straand, Jørund; Bjorvatn, Bjørn; Kristoffersen, Espen Saxhaug (Peer reviewed; Journal article, 2019)
      Sleep disturbances cause great impairment in quality of life. In this cross-sectional study, we analysed questionnaire-collected data from 12,655 persons (30-87 years) who participated in the sixth survey of the Tromsø ...