Browsing Bergen Open Research Archive by Author "Waage, Siri"
Now showing items 1-20 of 21
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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 ... -
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 ... -
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 ... -
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 ... -
The effects of bright light treatment on subjective and objective sleepiness during three consecutive night shifts among hospital nurses – a counter-balanced placebo-controlled crossover study
Bjorvatn, Bjørn; Pallesen, Ståle; Waage, Siri; Thun, Eirunn; Blytt, Kjersti Marie (Journal article; Peer reviewed, 2021)Objectives The objective was to investigate effects of timed bright light treatment on subjective and objective measures of sleepiness during three consecutive night shifts among hospital nurses. Methods Thirty-five ... -
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 ... -
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 ... -
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: ... -
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 ... -
Prevalence of shift work disorder: A systematic review and meta-analysis
Pallesen, Ståle; Bjorvatn, Bjørn; Waage, Siri; Harris, Anette Kristoffersen; Sagoe, Dominic (Journal article; Peer reviewed, 2021)Objectives: No systematic review or meta-analysis concerning the prevalence of shift work disorder (SWD) has been conducted so far. The aim was thus to review prevalence studies of SWD, to calculate an overall prevalence ... -
Restless legs syndrome - a study from general practice
Bjorvatn, Bjørn; Wensaas, Knut-Arne; Emberland, Knut Erik; Fadnes, Lars Thore; Litleskare, Sverre; Perez, Esperanza Diaz; Ruths, Sabine; Rørtveit, Guri; Waage, Siri (Journal article; Peer reviewed, 2021)BAKGRUNN Forekomsten av rastløse bein er rundt 5–10 % blant voksne i den generelle befolkningen. Få studier er gjort om forekomsten blant pasienter som oppsøker fastlege. Det er også få studier om sammenheng med andre ... -
Shift work and age in the offshore petroleum industry
Waage, Siri; Pallesen, Ståle; Moen, Bente Elisabeth; Bjorvatn, Bjørn (Peer reviewed; Journal article, 2010)Background. Shift work is associated with sleep and health problems. Tolerance to shift work is reported to decrease with age. Shift work tolerance should be considered in different shift work populations. The aim of the ... -
Shift Work and Lifestyle factors: A 6-year follow-Up Study Among Nurses
Buchvold, Hogne Vikanes; Pallesen, Ståle; Waage, Siri; Moen, Bente Elisabeth; Bjorvatn, Bjørn (Peer reviewed; Journal article, 2019-10-16)Objectives: To evaluate different work schedules, short rest time between shifts (quick returns), and night shift exposure for their possible adverse effects on different lifestyle factors in a 6-year follow-up study. ... -
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 medication and melatonin use among Norwegian nurses – A cross-sectional study
Forthun, Ingeborg; Waage, Siri; Pallesen, Ståle; Moen, Bente Elisabeth; Bjorvatn, Bjørn (Journal article; Peer reviewed, 2022)Aim To estimate the prevalence of sleep medication and melatonin use among nurses and to assess if factors related to work, sleep or mental health, were associated with such use. Design A cross-sectional study. Methods A ... -
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. ... -
Sleepiness among personnel in the Norwegian Air Ambulance Service
Eide, Tine Almenning; Harris, Anette; Bjorvatn, Bjørn; Gundersen, Hilde; Zakariassen, Erik; Pallesen, Ståle; Waage, Siri (Peer reviewed; Journal article, 2019)Purpose. To examine the effects of shift work and extended working hours on sleepiness among pilots and Helicopter Emergency Medical Service (HEMS) crew members in the Norwegian Air Ambulance. Methods. This field study ... -
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 ...