Blar i Bergen Open Research Archive på forfatter "Bjorvatn, Bjørn"
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Acoustic pharyngometry - A new method to facilitate oral appliance therapy
Opsahl, Ulrik Leidland; Berge, Morten Eirik; Lehmann, Sverre; Bjorvatn, Bjørn; Opsahl, Per; Johansson, Anders (Journal article; Peer reviewed, 2021)Background There is lack of reliable and accurate methods to predict treatment outcomes of oral appliance (OA) treatment. Acoustic pharyngometry (AP) is a non-invasive technique to evaluate the volume and minimal ... -
Adults with attention deficit hyperactivity disorder report high symptom levels of troubled sleep, restless legs, and cataplexy
Bjorvatn, Bjørn; Brevik, Erlend Joramo; Lundervold, Astri; Halmøy, Anne; Posserud, Maj-Britt Rocio; Instanes, Johanne Telnes; Haavik, Jan (Peer reviewed; Journal article, 2017-09-20)Objective: To compare the occurrence of a spectrum of different self-reported sleep problems in adults with ADHD and a control group, and to study the impact of current ADHD medication use and clinical ADHD subtype. Method: ... -
Aggression from Patients or Next of Kin and Exposure to Bullying Behaviors: A Conglomerate Experience?
Reknes, Iselin; Notelaers, Guy; Magerøy, Nils; Pallesen, Ståle; Bjorvatn, Bjørn; Moen, Bente Elisabeth; Einarsen, Ståle (Peer reviewed; Journal article, 2017-02-08)Although workplace violence and aggression have been identified as important stressors in the nursing profession, studies simultaneously comparing patient-initiated aggression and exposure to bullying behaviors at work are ... -
Alerting and Circadian Effects of Short-Wavelength vs. Long-Wavelength Narrow-Bandwidth Light during a Simulated Night Shift
Sunde, Erlend; Pedersen, Torhild; Mrdalj, Jelena; Thun, Eirunn; Grønli, Janne; Harris, Anette; Bjorvatn, Bjørn; Waage, Siri; Skene, Debra J.; Pallesen, Ståle (Journal article; Peer reviewed, 2020)Light can be used to facilitate alertness, task performance and circadian adaptation during night work. Novel strategies for illumination of workplaces, using ceiling mounted LED-luminaires, allow the use of a range of ... -
Ambient bright light treatment improved proxy-rated sleep but not sleep measured by actigraphy in nursing home patients with dementia: a placebo-controlled randomised trial
Hjetland, Gunnhild J.; Kolberg, Eirin; Pallesen, Ståle; Thun, Eirunn; Nordhus, Inger Hilde; Bjorvatn, Bjørn; Flo-Groeneboom, Elisabeth (Journal article; Peer reviewed, 2021-05-17)Background: Up to 70% of nursing home patients with dementia suffer from sleep problems. Light is the main zeitgeber to the circadian system and thus has a fundamental impact on sleep-wake behaviour. Low indoor light levels ... -
The association between different sleep health dimensions and sex, age, education, circadian preference, and chronic insomnia: a representative population-based study
Bjorvatn, Bjørn; Waage, Siri; Pallesen, Ståle; Buysse, Daniel J.; Saxvig, Ingvild W. (Journal article; Peer reviewed, 2023)Objectives The aims were to explore multidimensional sleep health and the different dimensions of sleep health in the adult Norwegian population in relation to sex, age, education, circadian preference, and chronic ... -
Association between hypersomnolence and the COVID-19 pandemic: The International COVID-19 Sleep Study (ICOSS)
Sarkanen, Tomi; Partinen, Markku; Bjorvatn, Bjørn; Merikanto, Ilona; Benedict, Christian; Nadorff, Michael R.; Bolstad, Courtney J.; Espie, Colin; Matsui, Kentaro; Chung, Frances; Morin, Charles M.; Wing, Yun Kwok; Penzel, Thomas; Macêdo, Tainá; Mota-Rolim, Sérgio; Holzinger, Brigitte; Plazzi, Giuseppe; De Gennaro, Luigi; Landtblom, Anne-Marie; Inoue, Yuichi; Sieminski, Mariuz; Leger, Damien; Dauvilliers, Yves (Journal article; Peer reviewed, 2023)Background The COVID-19 pandemic and related restriction measures have affected our daily life, sleep, and circadian rhythms worldwide. Their effects on hypersomnolence and fatigue remain unclear. Methods The ... -
The association between self-reported sleep problems, infection, and antibiotic use in patients in general practice
Forthun, Ingeborg; Eliassen, Knut Eirik Ringheim; Emberland, Knut Erik; Bjorvatn, Bjørn (Journal article; Peer reviewed, 2023)Objectives: There is emerging evidence that sleep problems and short sleep duration increase the risk of infection. We aimed to assess whether chronic insomnia disorder, chronic sleep problems, sleep duration and circadian ... -
The Association Between Shift Work and Immunological Biomarkers in Nurses
Bjorvatn, Bjørn; Axelsson, John; Pallesen, Ståle; Waage, Siri; Vedaa, Øystein; Blytt, Kjersti Marie; Buchvold, Hogne Vikanes; Moen, Bente Elisabeth; Thun, Eirunn (Journal article; Peer reviewed, 2020)Objectives: Shift work is associated with several negative health effects. The underlying pathophysiological mechanisms are unclear, but low-grade inflammation has been suggested to play a role. This project aimed to ... -
The association between shift work disorder and turnover intention among nurses
Blytt, Kjersti Marie; Bjorvatn, Bjørn; Moen, Bente Elisabeth; Pallesen, Ståle; Harris, Anette Kristoffersen; Waage, Siri (Journal article; Peer reviewed, 2022)Background: Shift work disorder (SWD) is highly prevalent among shift-working nurses and has multiple negative health-related effects. There is a dearth of insight into career-related decisions made by nurses suffering ... -
Association of Excessive Sleepiness, Pathological Fatigue, Depression, and Anxiety With Different Severity Levels of Obstructive Sleep Apnea
Mjelle, Karin Elisabeth Sundt; Lehmann, Sverre; Saxvig, Ingvild W.; Gulati, Shashi; Bjorvatn, Bjørn (Journal article; Peer reviewed, 2022-03-31)Objective: The aim of this study was to investigate possible associations between obstructive sleep apnea and fatigue. This naturally led to considering the association between OSA and excessive sleepiness, depression, and ... -
Associations between changes in habitual sleep duration and lower self-rated health among COVID-19 survivors: findings from a survey across 16 countries/regions
Matsui, Kentaro; Chung, Frances; Bjelajac, Adrijana Koscec; Merikanto, Ilona; Korman, Maria; Mota-Rolim, Sérgio; Cunha, Ana Suely; Bjorvatn, Bjørn; Xue, Pei; Benedict, Christian; Morin, Charles M.; Espie, Colin A.; Landtblom, Anne-Marie; Penzel, Thomas; De Gennaro, Luigi; Holzinger, Brigitte; Hrubos-Strøm, Harald; Leger, Damien; Bolstad, Courtney J.; Nadorff, Michael R.; Plazzi, Giuseppe; Reis, Catia; Chan, Ngan Yin; Wing, Yun Kwok; Yordanova, Juliana; Dauvilliers, Yves; Partinen, Markku; Inoue, Yuichi (Journal article; Peer reviewed, 2023)Background Self-rated health (SRH) is widely recognized as a clinically significant predictor of subsequent mortality risk. Although COVID-19 may impair SRH, this relationship has not been extensively examined. The ... -
Associations between excessive fatigue and pain, sleep, mental-health and work factors in Norwegian nurses
Hiestand, Stand Fenimore; Forthun, Ingeborg; Waage, Siri; Pallesen, Ståle; Bjorvatn, Bjørn (Journal article; Peer reviewed, 2023)Aim To investigate whether pain, sleep duration, insomnia, sleepiness, work-related factors, anxiety, and depression associate with excessive fatigue in nurses. Background Fatigue among nurses is a problem in the ... -
Associations between night work and BMI, alcohol, smoking, caffeine and exercise - A cross-sectional study
Buchvold, Hogne Vikanes; Pallesen, Ståle; Øyane, Nicolas Melchior Frederic; Bjorvatn, Bjørn (Peer reviewed; Journal article, 2015-11-12)Background: Shift work is associated with negative health effects. Increased prevalence of several cardiovascular risk factors among shift workers/night workers compared with day workers have been shown resulting in increased ... -
Blue-enriched white light improves performance but not subjective alertness and circadian adaptation during three consecutive simulated night shifts
Sunde, Erlend; Pedersen, Torhild; Mrdalj, Jelena; Thun, Eirunn; Grønli, Janne; Harris, Anette; Bjorvatn, Bjørn; Waage, Siri; Skene, Debra J.; Pallesen, Ståle (Journal article; Peer reviewed, 2020)Use of blue-enriched light has received increasing interest regarding its activating and performance sustaining effects. However, studies assessing effects of such light during night work are few, and novel strategies for ... -
Bright light exposure during simulated night work improves cognitive flexibility
Sunde, Erlend; Mrdalj, Jelena; Pedersen, Torhild Thue; Bjorvatn, Bjørn; Grønli, Janne; Harris, Anette Kristoffersen; Waage, Siri; Pallesen, Ståle (Journal article; Peer reviewed, 2022)Night work leads to sleepiness and reduced vigilant attention during work hours, and bright light interventions may reduce such effects. It is also known that total sleep deprivation impairs cognitive flexibility as measured ... -
Can insomnia in pregnancy predict postpartum depression? A longitudinal, population-based study
Dørheim, Signe Karen; Bjorvatn, Bjørn; Eberhard-Gran, Malin (Peer reviewed; Journal article, 2014-04-14)Background: Insomnia and depression are strongly interrelated. This study aimed to describe changes in sleep across childbirth, and to evaluate whether insomnia in pregnancy is a predictor of postpartum depression. Methods: ... -
Causes and management of sleepiness among pilots in a Norwegian and an Austrian air ambulance service—a comparative study
Zakariassen, Erik; Waage, Siri; Harris, Anette; Gatterbauer-Trischler, Pia; Lang, Bernd; Voelckel, Wolfgang Georg Cornelius; Pallesen, Ståle; Bjorvatn, Bjørn (Peer reviewed; Journal article, 2019-01)Objective We compared subjectively reported sleepiness and fatigue as well as causes and management strategies for combating sleepiness among pilots working in 2 different helicopter emergency medical services operating ... -
Changes in the Work Schedule of Nurses Related to the COVID-19 Pandemic and Its Relationship with Sleep and Turnover Intention
Djupedal, Ingebjørg Louise Rockwell; Pallesen, Ståle; Harris, Anette Kristoffersen; Waage, Siri; Bjorvatn, Bjørn; Vedaa, Øystein (Journal article; Peer reviewed, 2022-07-17)Background: This study aimed to investigate whether different types of changes in the work schedule of nurses working rotating shifts during the COVID-19 pandemic were associated with sleep duration, sleep quality, and ... -
Circadian typology and implications for adolescent sleep health. Results from a large, cross-sectional, school-based study
Saxvig, Ingvild West; Evanger, Linn Nyjordet; Pallesen, Ståle; Hysing, Mari; Sivertsen, Børge; Gradisar, Michael; Bjorvatn, Bjørn (Journal article; Peer reviewed, 2021)Study objectives To investigate circadian typology in a large, representative sample of Norwegian adolescents, and its implications for sleep health. Methods The sample included 3920 1st year high school students aged ...