Browsing NTNU Open by Author "Vedaa, Øystein"
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Fylkeshelseundersøkelsen i Nordland: Fremgangsmåte og utvalgte resultater
Skogen, Jens Christoffer; Nilsen, Thomas Sevenius; Aasan, Bodil Elisabeth Valstad; Nes, Ragnhild Bang; Aarø, Leif Edvard; Vedaa, Øystein (Research report, 2020) -
General and alcohol-related social media use and mental health: A large-sample longitudinal study
Erevik, Eilin K.; Pallesen, Ståle; Vedaa, Øystein; Andreassen, Cecilie Schou; Dhir, Amandeep; Torsheim, Torbjørn (Peer reviewed; Journal article, 2020)The current study aimed to investigate if general and alcohol-related social media use predicts symptoms of depression and anxiety. Students in Bergen, Norway, participated in a Web-based survey during fall 2015 (T1) and ... -
Habitual Sleep, Social Jetlag, and Reaction Time in Youths With Delayed Sleep–Wake Phase Disorder. A Case–Control Study
Saxvig, Ingvild W.; Wilhelmsen-Langeland, Ane; Pallesen, Ståle; Nordhus, Inger Hilde; Vedaa, Øystein; Bjorvatn, Bjørn (Journal article; Peer reviewed, 2019)The aim of this study was to explore habitual sleep, social jetlag, and day-to-day variations in sleep (measured as intra-individual standard deviation, ISD) in youths with delayed sleep–wake phase disorder (DSWPD), compared ... -
Health-promoting work schedules. Protocol for a large-scale cluster randomised controlled trial on the effects of a work schedule without quick returns on sickness absence among healthcare workers
Vedaa, Øystein; Djupedal, Ingebjørg Louise Rockwell; Svensen, Erling; Waage, Siri; Bjorvatn, Bjørn; Pallesen, Ståle; Lie, Stein Atle; Nielsen, Morten Birkeland; Harris, Anette Kristoffersen (Journal article; Peer reviewed, 2022)ntroduction In shift work, quick returns refer to transitions between two shifts with less than 11 hours available rest time. Twenty-three per cent of employees in European countries reported having quick returns. Quick ... -
How the Norwegian population was affected by non-pharmaceutical interventions during the first six weeks of the COVID-19 lockdown
Mæland, Silje; Bjørknes, Ragnhild; Lehmann, Stine; Sandal, Gro Mjeldheim; Hazell, William; Rabben, Åsgeir Kjetland; Vedaa, Øystein; Skogen, Jens Christoffer; Fadnes, Lars T. (Journal article; Peer reviewed, 2021)Aims The aim of this study was to examine how the Norwegian general adult population was affected by non-pharmaceutical interventions during the first six weeks of the COVID-19 lockdown. We assessed quarantine, symptoms, ... -
Insomnia, sleep duration and academic performance: A national survey of Norwegian college and university students
Vedaa, Øystein; Erevik, Eilin K.; Hysing, Mari; Hayley, Amie C.; Sivertsen, Børge (Journal article; Peer reviewed, 2019)Objective The aim of this study was to evaluate the associations between insomnia, sleep duration and self-reported academic performance/failure in a large sample of Norwegian college and university students. Methods This ... -
Internet-delivered cognitive-behavioral therapy for insomnia and comorbid symptoms
Hagatun, Susanne; Vedaa, Øystein; Harvey, Allison G.; Nordgreen, Tine; Smith, Otto Robert Frans; Pallesen, Ståle; Havik, Odd E.; Thorndike, Frances P.; Ritterband, Lee M.; Sivertsen, Børge (Journal article; Peer reviewed, 2018)Background Cognitive-behavioral therapy for insomnia (CBTi) is considered the standard treatment. The internet has proven to be a useful and successful tool of providing CBTi. However, few studies have investigated the ... -
Locked and lonely? A longitudinal assessment of loneliness before and during the COVID-19 pandemic in Norway
Hansen, Thomas; Nilsen, Thomas Sevenius; Yu, Baeksan; Knapstad, Marit; Skogen, Jens Christoffer; Vedaa, Øystein; Nes, Ragnhild Bang (Peer reviewed; Journal article, 2021)Aims: There are concerns that lockdown measures taken during the current COVID-19 pandemic lead to a rise in loneliness, especially in vulnerable groups. We explore trends in loneliness before and during the pandemic and ... -
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 (Journal article; Peer reviewed, 2018)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. A total of 1538 nurses (mean age 42.5, SD 12.0; ... -
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 (Journal article; Peer reviewed, 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, ... -
Mode of delivery of Cognitive Behavioral Therapy for Insomnia: a randomized controlled non-inferiority trial of digital and face-to-face therapy
Kallestad, Håvard; Scott, Janine Linda; Vedaa, Øystein; Lydersen, Stian; Vethe, Daniel; Morken, Gunnar; Stiles, Tore C; Sivertsen, Børge; Langsrud, Knut (Peer reviewed; Journal article, 2021)Study Objectives Digital Cognitive Behavioral Therapy for Insomnia (dCBT-I) has demonstrated efficacy in reducing insomnia severity in self-referred and community samples. It is unknown, however, how dCBT-I compares to ... -
Nasjonal anbefaling for utredning og behandling av døgnrytmelidelser
Bjorvatn, Bjørn; Kallestad, Håvard; Langsrud, Knut; Vedaa, Øystein; Pallesen, Ståle; Waage, Siri; Wilhelmsen-Langeland, Ane; Saxvig, Ingvild; Abeler, Karin Louise (Peer reviewed; Journal article, 2023)Nasjonal kompetansetjeneste for søvnsykdommer (fra 2023: Nasjonalt senter for søvnmedisin) nedsatte høsten 2022 en arbeidsgruppe for å utvikle en nasjonal anbefaling for utredning og behandling av døgnrytmelidelser. Gruppen ... -
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 (Peer reviewed; Journal article, 2020)Abstract 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 ... -
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 (Journal article; Peer reviewed, 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 (Journal article; Peer reviewed, 2019)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 ... -
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 (Journal article; Peer reviewed, 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 (Journal article; Peer reviewed, 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 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 (Peer reviewed; Journal article, 2022)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 (Peer reviewed; Journal article, 2020)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 (Peer reviewed; Journal article, 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 ...