• 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 ...
    • 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 ...
    • 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 ...
    • 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 ...
    • 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 ...
    • Subjective and objective sleep among air ambulance personnel 

      Flaa, Tine Almenning; Bjorvatn, Bjørn; Pallesen, Ståle; Røislien, Jo; Zakariassen, Erik; Harris, Anette; Waage, Siri (Journal article; Peer reviewed, 2021)
      The present study aimed to investigate the effects of shift work on sleep among pilots and Helicopter Emergency Medical Service crew members (HCM) in the Norwegian Air Ambulance. Sleep was assessed by diaries and actigraphy ...