Blar i NTNU Open på forfatter "Vedaa, Øystein"
-
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 ... -
Changes in work schedule affect the prevalence of shift work disorder among Norwegian nurses–a two year follow-up study
Waage, Siri; Pallesen, Ståle; Moen, Bente Elisabeth; Vedaa, Øystein; Thun, Eirunn; Buchvold, Hogne Vikanes; Blytt, Kjersti Marie; Harris, Anette Kristoffersen; Bjorvatn, Bjørn (Journal article; Peer reviewed, 2021)This study aimed to explore how changes in the work schedule would affect the prevalence of Shift Work Disorder (SWD) over time. Two-year follow-up data from 1076 nurses participating in the longitudinal SUrvey of Shift ... -
Covid-fatigued? A longitudinal study of Norwegian older adults’ psychosocial well-being before and during early and later stages of the COVID-19 pandemic
Hansen, Thomas; Nilsen, Thomas Sevenius; Knapstad, Marit; Skirbekk, Vegard Fykse; Skogen, Jens Christoffer; Vedaa, Øystein; Nes, Ragnhild Bang (Peer reviewed; Journal article, 2021)As the pandemic continues, many older adults are facing prolonged isolation and stress while having less access to traditional ways of coping. There is widespread concern that the situation is increasingly taking its toll ... -
Demographical, personality, alcohol use, and mental health characteristics associated with different alcoholic beverage preferences among students
Erevik, Eilin K.; Torsheim, Torbjørn; Vedaa, Øystein; Andreassen, Cecilie Schou; Pallesen, Ståle (Peer reviewed; Journal article, 2020)The study investigates correlates (i.e. demographics, personality, alcohol use and alcohol-related harm, alcohol expectancies, and mental health) of different alcoholic beverage preferences (i.e. beer/alcopops/cider, wine, ... -
Demographics, personality and substance-use characteristics associated with forming romantic relationships
Erevik, Eilin K.; Pallesen, Ståle; Andreassen, Cecilie Schou; Vedaa, Øystein; Skogstad, Anders; Dhir, Amandeep; Torsheim, Torbjørn (Journal article; Peer reviewed, 2019)The current study aimed to identify demographic, personality and substance-use characteristics associated with forming romantic relationships. Data were collected by two online surveys among students in Bergen, Norway, ... -
Digital cognitive-behavioural therapy for insomnia compared with digital patient education about insomnia in individuals referred to secondary mental health services in Norway: Protocol for a multicentre randomised controlled trial
Kallestad, Håvard; Saksvik, Simen Berg; Vedaa, Øystein; Langsrud, Knut; Morken, Gunnar; Lydersen, Stian; Simpson, Melanie Rae; Dørheim, Signe Karen; Holmøy, Bjørn; Germans Selvik, Sara; Hagen, Kristen; Stiles, Tore C; Harvey, Allison G.; Ritterband, Lee M.; Sivertsen, Børge; Scott, Janine Linda (Peer reviewed; Journal article, 2021)Introduction Insomnia is highly prevalent in outpatients receiving treatment for mental disorders. Cognitive–behavioural therapy for insomnia (CBT-I) is a recommended first-line intervention. However, access is limited and ... -
The effect of sleep-wake intraindividual variability in digital cognitive behavioral therapy for insomnia: a mediation analysis of a large-scale RCT
Vestergaard, Cecilie Lund; Vedaa, Øystein; Simpson, Melanie Rae; Faaland, Patrick; Vethe, Daniel; Kjørstad, Kaia; Langsrud, Knut; Ritterband, Lee M; Sivertsen, Børge; Stiles, Tore C; Scott, Jan; Kallestad, Håvard (Peer reviewed; Journal article, 2021)Study Objectives Digital cognitive behavioral therapy for insomnia (dCBT-I) is an effective treatment for insomnia. However, less is known about mediators of its benefits. The aim of the present study was to test if ... -
Effects of digital cognitive behavioural therapy for insomnia on insomnia severity: a large-scale randomised controlled trial
Vedaa, Øystein; Kallestad, Håvard; Scott, Janine Linda; Smith, Otto Robert Frans; Pallesen, Ståle; Morken, Gunnar; Langsrud, Knut; Gehrman, Philip; Thorndike, Frances P.; Ritterband, Lee M.; Harvey, Allison G.; Stiles, Tore C; Sivertsen, Børge (Peer reviewed; Journal article, 2020)Background Although several large-scale randomised controlled trials have shown the efficacy of digital cognitive behavioural therapy for insomnia (dCBT-I), there is a need to validate widespread dissemination of dCBT-I ... -
Folkehelseundersøkelsen i Agder: Fremgangsmåte og utvalgte resultater
Skogen, Jens Christoffer; Vedaa, Øystein; Nilsen, Thomas Sevenius; Nes, Ragnhild Bang; Tallaksen, Andreas; Aarø, Leif Edvard (Research report, 2020) -
Folkehelseundersøkelsen i Rogaland 2020: Fremgangsmåte og utvalgte resultater
Skogen, Jens Christoffer; Nilsen, Thomas Sevenius; Hjetland, Gunnhild Johnsen; Knapstad, Marit; Nes, Ragnhild Bang; Aarø, Leif Edvard; Vedaa, Øystein (Research report, 2020) -
Folkehelseundersøkelsen i Troms og Finnmark: Fremgangsmåte og utvalgte resultater
Skogen, Jens Christoffer; Vedaa, Øystein; Nilsen, Thomas Sevenius; Nes, Ragnhild Bang; Aarø, Leif Edvard (Research report, 2019) -
“Freshman’s week”: characteristics associated with participation and experiencing adverse effects
Erevik, Eilin K.; Pallesen, Ståle; Vedaa, Øystein; Andreassen, Cecilie Schou; Torsheim, Torbjørn (Journal article; Peer reviewed, 2018)Background “Freshman’s week” (FW) is a Norwegian initiation ritual to higher education. Previous research has suggested that FW-participation is associated with better social adjustment to the student setting, as well as ... -
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 ... -
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; ...