Browsing Bergen Open Research Archive by Author "Bjorvatn, Bjørn"
Now showing items 41-60 of 106
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Increased Health Risk in Subjects with High Self-Reported Seasonality
Øyane, Nicolas Melchior Frederic; Ursin, Reidun; Pallesen, Ståle; Holsten, Fred; Bjorvatn, Bjørn (Peer reviewed; Journal article, 2010-03-03)Background: Seasonal variations in mood and behaviour, termed seasonality, are commonly reported in the general population. As a part of a large cross-sectional health survey in Hordaland, Norway, we investigated the ... -
Insomnia as a partial mediator of the relationship between personality and future symptoms of anxiety and depression among nurses
Sørengaard, Torhild Anita; Karlsen, Håvard Rudi; Langvik, Eva; Pallesen, Ståle; Bjorvatn, Bjørn; Waage, Siri; Moen, Bente Elisabeth; Saksvik-Lehouillier, Ingvild (Peer reviewed; Journal article, 2019-04-26)Background: This study investigates insomnia as a partial mediator in the relationship between personality and symptoms of anxiety and depression. Methods: The study is based on partly longitudinal data from the ... -
Insomnia symptom trajectories among adult survivors of childhood sexual abuse: A longitudinal study
Steine, Iris Mulders; Skogen, Jens Christoffer; Krystal, John H.; Winje, Dagfinn; Milde, Anne Marita; Grønli, Janne; Nordhus, Inger Hilde; Bjorvatn, Bjørn; Pallesen, Ståle (Peer reviewed; Journal article, 2019)Background: Childhood sexual abuse (CSA) is associated with sleep disturbances in adulthood. However, longitudinal studies have yet to identify among CSA-survivors subgroups distinguished by the trajectory of their insomnia ... -
Insomnia – A Heterogenic Disorder Often Comorbid With Psychological and Somatic Disorders and Diseases: A Narrative Review With Focus on Diagnostic and Treatment Challenges
Bjorvatn, Bjørn; Jernelöv, Susanna; Pallesen, Ståle (Journal article; Peer reviewed, 2021)Patients with insomnia complain of problems with sleep onset or sleep maintenance or early morning awakenings, or a combination of these, despite adequate opportunity and circumstances for sleep. In addition, to fulfill ... -
Long working hours are inversely related to sick leave in the following 3 months: a 4-year registry study
Vedaa, Øystein; Pallesen, Ståle; Erevik, Eilin K.; Svensen, Erling; Waage, Siri; Bjorvatn, Bjørn; Sivertsen, Børge; Harris, Anette (Peer reviewed; Journal article, 2019-05)Purpose: The aim of this study was to investigate the effects of long working hours (≥ 12 h shifts) on sick leave using objective records of shift work exposure and of sick leave. Methods: A total of 1538 ... -
Long-term pain treatment did not improve sleep in nursing home patients with comorbid dementia and depression: A 13-week randomized placebo-controlled trial
Blytt, Kjersti Marie; Husebø, Bettina; Flo, Elisabeth; Bjorvatn, Bjørn (Peer reviewed; Journal article, 2018-02-13)Objective: Previous research indicates that pain treatment may improve sleep among nursing home patients. We aimed to investigate the long-term effect of pain treatment on 24-h sleep patterns in patients with comorbid ... -
Longitudinal Relationships between Perceived Social Support and Symptom Outcomes: Findings from a sample of Adult Survivors of Childhood Sexual Abuse
Steine, Iris Mulders; Winje, Dagfinn; Krystal, John H.; Milde, Anne Marita; Bjorvatn, Bjørn; Nordhus, Inger Hilde; Grønli, Janne; Pallesen, Ståle (Journal article; Peer reviewed, 2020)Cross-sectional studies have consistently reported an inverse association between perceived social support and the severity of mental health symptoms among adult survivors of childhood sexual abuse (CSA). However, there ... -
A longitudinal study on the association between quick returns and occupational accidents
Vedaa, Øystein; Harris, Anette; Waage, Siri; Bjorvatn, Bjørn; Thun, Eirunn; Buchvold, Hogne Vikanes; Djupedal, Ingebjørg Louise Rockwell; Pallesen, Ståle (Journal article, 2020)Objective: This study aimed to investigate how change in the number of quick returns [(QR) <11 hours between consecutive shifts] longitudinally is associated with risk of occupational accidents among nurses. Methods: ... -
Meal and Sleep Timing before and during the COVID-19 Pandemic: A Cross-Sectional Anonymous Survey Study from Sweden
Benedict, Christian; Brandão, Luiz Eduardo Mateus; Merikanto, Ilona; Partinen, Markku; Bjorvatn, Bjørn; Cedernaes, Jonathan (Journal article; Peer reviewed, 2021)The COVID-19 pandemic and related restrictions, such as stay-at-home-orders, have significantly altered daily routines and lifestyles. Given their importance for metabolic health, we herein compared sleep and meal timing ... -
Midlife insomnia and subsequent mortality: the Hordaland health study
Sivertsen, Børge; Pallesen, Ståle; Glozier, Nick; Bjorvatn, Bjørn; Salo, Paula; Tell, Grethe Seppola; Ursin, Reidun; Øverland, Simon (Peer reviewed; Journal article, 2014-07-15)Background: Previous research suggests a possible link between insomnia and mortality, but findings are mixed and well-controlled studies are lacking. The aim of the current study was to examine the effect of insomnia in ... -
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, ... -
A national survey on how sexual activity is perceived to be associated with sleep
Pallesen, Ståle; Waage, Siri; Thun, Eirunn; Andreassen, Cecilie Schou; Bjorvatn, Bjørn (Peer reviewed; Journal article, 2020)There is a paucity of studies investigating how sexual activity is perceived to influence sleep, despite conceptions about significant gender differences regarding this issue. In all, 4000 persons, aged between 18 and 55 ... -
Nightmares in People with COVID-19: Did Coronavirus Infect Our Dreams?
Scarpelli, Serena; Nadorff, Michael R.; Bjorvatn, Bjørn; Chung, Frances; Dauvilliers, Yves; Espie, Colin A.; Inoue, Yuichi; Matsui, Kentaro; Merikanto, Ilona; Morin, Charles M.; Penzel, Thomas; Sieminski, Mariusz; Fang, Han; Macêdo, Tainá; Mota-Rolim, Sérgio A.; Leger, Damien; Plazzi, Giuseppe; Chan, Ngan Yin; Partinen, Markku; Bolstad, Courtney J.; Holzinger, Brigitte; De Gennaro, Luigi (Journal article; Peer reviewed, 2022)Introduction: A growing number of studies have demonstrated that the coronavirus disease-19 (COVID-19) pandemic has severely affected sleep and dream activity in healthy people. To date, no investigation has examined dream ... -
No effect of a self-help book for insomnia in patients with obstructive sleep apnea and comorbid chronic insomnia – a randomized controlled trial.
Bjorvatn, Bjørn; Berge, Thomas; Lehmann, Sverre; Pallesen, Ståle; Saxvig, Ingvild W. (Peer reviewed; Journal article, 2018-11-29)Objective: To compare the effects of a self-help book for insomnia to that of sleep hygiene advice in a randomized controlled trial with follow-up after about 3 months among patients who were diagnosed with obstructive ... -
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 ... -
Nye diagnosekriterier for insomni og sammenhengen mellom insomni, angst og depresjon
Olufsen, Inger Sofie Lindberg; Sørensen, Marie Ellingsen; Bjorvatn, Bjørn (Journal article; Peer reviewed, 2020)Bakgrunn: I klassifikasjonssystemet Diagnostic Statistical Manual of Mental Disorders, versjon 5 (DSM-5) er diagnosekriteriene for insomni endret. De samme endringene ventes i International Classification of Diseases, ... -
Pain complaints after consecutive nights and quick returns in Norwegian nurses working three-shift rotation: an observational study
Katsifaraki, Maria; Nilsen, Kristian Bernhard; Christensen, Jan Olav; Wærsted, Morten; Knardahl, Stein; Bjorvatn, Bjørn; Härmä, Mikko; Matre, Dagfinn (Journal article; Peer reviewed, 2020)Objectives To determine whether nurses working consecutive night shifts, or short transitions between shifts (quick returns (QRs)), yielded higher risk for pain complaints when compared with regular morning shifts. Sleep ... -
Patient-reported depression treatment and future treatment preferences: an observational study in general practice
Hetlevik, Øystein; Garre-Fivelsdal, Gina Dorothea; Bjorvatn, Bjørn; Hjørleifsson, Stefan; Ruths, Sabine (Peer reviewed; Journal article, 2019)Background: Depression is prevalent in general practice, but few studies have explored patient-reported depression care. Aim: To investigate patient-reported treatment received for depression and future treatment preferences ... -
Patients want their doctors’ help to increase physical activity: a cross sectional study in general practice
Falskog, Frida; Landsem, Ane M.; Meland, Eivind; Bjorvatn, Bjørn; Hjelle, Ole Petter; Mildestvedt, Thomas (Journal article; Peer reviewed, 2021)Background Inactivity is prevalent in patients presenting in general practice, and the health benefits of increased physical activity (PA) are well known. Few studies have explored whether patients want their general ... -
Patients with delayed sleep-wake phase disorder show poorer executive functions compared to good sleepers
Wilhelmsen-Langeland, Ane; Saxvig, Ingvild W.; Johnsen, Emma Hole; Marszalek, Maja Anna; Andersen, Maria Isolde Wiig; Sætre, Vild Katrine; Lundervold, Astri; Vedaa, Øystein; Nordhus, Inger Hilde; Pallesen, Ståle; Bjorvatn, Bjørn (Peer reviewed; Journal article, 2019-02)Objective: Delayed Sleep-Wake Phase Disorder (DSWPD) is associated with negative outcomes, including reduced daytime performance and difficulties with treatment adherence. These outcomes are mediated by executive functions ...