Blar i Bergen Open Research Archive på forfatter "Vedaa, Øystein"
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Long-Term Effects of an Unguided Online Cognitive Behavioral Therapy for Chronic Insomnia
Vedaa, Øystein; Hagatun, Susanne; Kallestad, Håvard; Pallesen, Ståle; Smith, Otto Robert Frans; Thorndike, Frances P; Ritterband, Lee M.; Sivertsen, Børge (Peer reviewed; Journal article, 2019)STUDY OBJECTIVES: The aim of this study was to test the efficacy of fully automated Internet-delivered cognitive behavioral therapy for insomnia (CBT-I) 18 months after the intervention period on sleep, daytime functioning, ... -
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: ... -
Lowering COVID-19 vaccine hesitancy among immigrants in Norway: Opinions and suggestions by immigrants
Kour, Prabhjot; Gele, Abdi; Arild, Aambø; Qureshi, Samera Azeem; Vedaa, Øystein; Sheikh, Naima Said; Indseth, Thor (Journal article; Peer reviewed, 2022)Even though COVID-19 vaccine has been proved effective, vaccine uptake and coverage has been and still is a great concern across different immigrant groups. Vaccine hesitancy remains a barrier to accept the vaccine among ... -
The Norwegian remote intervention program for problem gambling: Short- and long-term outcomes
Erevik, Eilin K.; Pallesen, Ståle; Mohn, Mette; Aspeland, Trond; Vedaa, Øystein; Torsheim, Torbjørn (Journal article; Peer reviewed, 2020)Background and aim: Although problem gambling typically involves substantial distress, few seek face-to-face treatment. In Norway, problem gamblers can participate in a governmental supported internet- and telephone-based ... -
Overcoming insomnia: Protocol for a large-scale randomised controlled trial of online cognitive behaviour therapy for insomnia compared with online patient education about sleep
Kallestad, Håvard; Vedaa, Øystein; Scott, Janine Linda; Morken, Gunnar; Pallesen, Ståle; Harvey, Allison G.; Gehrman, Phil; Thorndike, Frances; Ritterband, Lee; Stiles, Tore C; Sivertsen, Børge (Peer reviewed; Journal article, 2018)Introduction Insomnia is a major public health concern. While cognitive behaviour therapy for insomnia (CBT-I) is acknowledged as the best available intervention, there are unanswered questions about its wider dissemination, ... -
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 ... -
Protocol for a systematic review and meta-analysis on the associations between shift work and sickness absence
Sunde, Erlend; Harris, Anette Kristoffersen; Nielsen, Morten Birkeland; Bjorvatn, Bjørn; Lie, Stein Atle; Holmelid, Øystein; Vedaa, Øystein; Waage, Siri; Pallesen, Ståle (Journal article; Peer reviewed, 2022)Background Shift work, i.e., non-standard work hours, has been associated with both short- and long-term sickness absence. However, findings are inconsistent and inconclusive. Thus far, no comprehensive meta-analytic ... -
A randomized controlled trial with bright light and melatonin for treatment of delayed sleep phase disorder. Effects on subjective and objective sleepiness and cognitive function.
Wilhelmsen-Langeland, Ane; Saxvig, Ingvild West; Pallesen, Ståle; Nordhus, Inger Hilde; Vedaa, Øystein; Lundervold, Astri Johansen; Bjorvatn, Bjørn (Peer reviewed; Journal article, 2013-10)Delayed sleep phase disorder (DSPD) is a circadian rhythm sleep disorder. Patients with DSPD have problems initiating sleep if they go to bed at a conventional time and they often have problems waking at desired times. If ... -
Recurrent cannabis use among Norwegian students: Prevalence, characteristics, and polysubstance use
Erevik, Eilin K.; Torsheim, Torbjørn; Andreassen, Cecilie Schou; Vedaa, Øystein; Pallesen, Ståle (Peer reviewed; Journal article, 2017)Background: Research on cannabis has focused on lifetime use or regular/heavy use (i.e., daily or almost daily). Regular, albeit not necessarily daily, cannabis use has received less scientific attention. Objectives: This ... -
Short and long-term effects of unguided internet-based cognitive behavioral therapy for chronic insomnia in morning and evening persons: a post-hoc analysis
Lien, Mats; Bredeli, Einar Rørstad; Sivertsen, Børge; Kallestad, Håvard; Pallesen, Ståle; Smith, Otto Robert Frans; Faaland, Patrick; Ritterband, Lee M.; Thorndike, Frances P.; Vedaa, Øystein (Peer reviewed; Journal article, 2019)A post-hoc analysis comparing morning and evening persons with insomnia on sleep and mental health characteristics was conducted in order to investigate whether an Internet-based cognitive behavioral therapy for insomnia ... -
Short rest between shifts (quick returns) and night work is associated with work-related accidents
Vedaa, Øystein; Harris, Anette; Erevik, Eilin K.; Waage, Siri; Bjorvatn, Bjørn; Sivertsen, Børge; Moen, Bente Elisabeth; Pallesen, Ståle (Peer reviewed; Journal article, 2019)Purpose: The aim of this study was to examine whether less than 11 h between shifts (i.e., quick returns, QRs) and night shifts is associated with self-reported work-related accidents, near accidents or dozing off at work ... -
Sleep and childhood maltreatment: A matched-control study of sleep characteristics in Norwegian 16–19-year-olds
Schønning, Viktor; Hysing, Mari; Dovran, Anders; Nilsen, Sondre Aasen; Hafstad, Gertrud Sofie; Vedaa, Øystein; Sivertsen, Børge (Journal article; Peer reviewed, 2023)Sleep problems are an important but understudied health problem in adolescents exposed to childhood maltreatment. The current study aimed to examine sleep characteristics and insomnia in a population with maltreatment ... -
Sleep and work functioning in nurses undertaking inpatient shifts in a blue-depleted light environment
Kjørstad, Kaia; Faaland, Patrick; Sivertsen, Børge; Kallestad, Håvard; Langsrud, Knut; Vethe, Daniel; Vestergaard, Cecilie Lund; Harris, Anette Kristoffersen; Pallesen, Ståle; Scott, Jan; Vedaa, Øystein (Journal article; Peer reviewed, 2022-07-18)Background: Blue-depleted light environments (BDLEs) may result in beneficial health outcomes for hospital inpatients in some cases. However, less is known about the effects on hospital staff working shifts. This study ... -
Sleep in the land of the midnight sun and polar night: The Tromsø study
Sivertsen, Børge; Friborg, Oddgeir; Pallesen, Ståle; Vedaa, Øystein; Hopstock, Laila Arnesdatter (Journal article; Peer reviewed, 2021)While some diseases and human behaviors fluctuate consistently with season, the extent of seasonal variations in sleep, especially at high latitudes, is less consistent. We used data from a geographic region (69º North) ... -
Sleep patterns among Norwegian nurses between the first and second wave of the COVID-19 pandemic
Waage, Siri; Pallesen, Ståle; Vedaa, Øystein; Buchvold, Hogne Vikanes; Blytt, Kjersti Marie; Harris, Anette; Bjorvatn, Bjørn (Journal article; Peer reviewed, 2021)Background: Nurses are in the frontline and play an important role in the battle against the COrona VIrus Disease-2019 (COVID-19) pandemic. Sleep problems among health care workers are likely to increase due to the pandemic. ... -
Stability and Change of the Personality Traits Languidity and Flexibility in a Sample of Nurses: A 7–8 Years Follow-Up Study
Pallesen, Ståle; Thun, Eirunn; Waage, Siri; Vedaa, Øystein; Harris, Anette Kristoffersen; Blytt, Kjersti Marie; Kaur, Puneet; Bjorvatn, Bjørn (Journal article; Peer reviewed, 2021)The traits languidity (tendency to become tired/sleepy upon losing sleep) and flexibility (ability to sleep and work at odd times) have been implicated in shift work tolerance. However, there is a dearth of knowledge about ... -
Study protocol: the Norwegian Triple-S Cohort Study - establishing a longitudinal health survey of children and adolescents with experiences of maltreatment
Schønning, Viktor; Dovran, Anders; Hysing, Mari; Hafstad, Gertrud Sofie; Stokke, Kristin; Aarø, Leif Edvard; Tobiassen, Stian; Jonassen, John Are Bjerge; Vedaa, Øystein; Sivertsen, Børge (Journal article; Peer reviewed, 2021)Background Child maltreatment is prevalent and associated with both short- and long-term health problems. Previous studies have established child maltreatment as a risk factor for a wide range of problems over the life ... -
Tinder use and romantic relationship formations: A large-scale longitudinal study
Erevik, Eilin K.; Kristensen, Joakim Hellumbråten; Torsheim, Torbjørn; Vedaa, Øystein; Pallesen, Ståle (Journal article; Peer reviewed, 2020-08-14)The current paper aims to investigate if Tinder use predicts romantic relationship formation 1 year later and to identify demographic, personality, mental health, and substance use covariates in the relationship between ... -
Visiting crowded places during the COVID-19 pandemic. A panel study among adult Norwegians
Aarø, Leif Edvard; Veneti, Lamprini; Vedaa, Øystein; Smith, Otto Robert Frans; De Blasio, Birgitte Freiesleben; Robberstad, Bjarne (Journal article; Peer reviewed, 2022-12-15)Non-pharmaceutical interventions, including promotion of social distancing, have been applied extensively in managing the COVID-19 pandemic. Understanding cognitive and psychological factors regulating precautionary behavior ... -
Working hour characteristics and schedules among nurses in three Nordic countries – a comparative study using payroll data
Garde, Anne Helene; Harris, Anette; Vedaa, Øystein; Bjorvatn, Bjørn; Hansen, Johnni; Hansen, Åse Marie; Kolstad, Henrik A.; Koskinen, Aki; Pallesen, Ståle; Ropponen, Annina; Härmä, Mikko (Peer reviewed; Journal article, 2019-03-28)Background: Organisation of working hour schedules in the Northern European countries are rather similar. EU countries are obliged to adopt national legislation regarding duration of weekly working hours and rest periods. ...