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Articles 2021

  1. Alpers, S. E., Skogen, J. C., Mæland, S., Pallesen, S., Rabben, Å. K., Lunde, L. H., & Fadnes, L. T. (2021). Alcohol consumption during a pandemic lockdown period and change in alcohol consumption related to worries and pandemic measures. International Journal of Environmental Research and Public Health. 18, 1220.
  2. Benedict C, Partinen M, Bjorvatn B, Cedernaes J. Sleep in female healthcare workers during COVID-19: a cross-sectional study in Sweden during the flattening of the first wave. Annals of the American Thoracic Society 2021; 18: 1418-1420. PMID: 33448898.
  3. Benedict C, Brandão LEM, Merikanto I, Partinen M, Bjorvatn B, Cedernaes J. Meal and sleep timing before and during the COVID-19 pandemic: A cross-sectional anonymous survey study from Sweden. Clocks & Sleep 2021; 3: 251-258. PMID: 33921946.
  4. Bjorvatn, B., Jernelöv, S., & Pallesen, S. (2021). Insomnia – A heterogenic disorder often comorbid with psychological and somatic disorders and diseases: A narrative review with focus on diagnostic and treatment challenges. Frontiers in Psychology, 12, article no. 639198.
  5. Bjorvatn, B., Pallesen, S., Saxvig, I. W., & Waage, S. (2021). Daylight saving time preferences in Norway: Do individual chronotype and home address’ latitude and longitude matter? Chronobiology International, 38, 1449-1459.
  6. Bjorvatn, B., Pallesen, S., Waage, S., Thun, E., & Blytt, K. M. (2021). 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. Scandinavian Journal of Work Environment & Health, 47, 145-153.
  7. Bjorvatn, B., Saxvig, I. W., Waage, S., & Pallesen, S. (2021). Self-reported seasonality is strongly associated with chronotype and weakly associated with latitude. Chronobiology International, 39, 278-285.
  8. Bjorvatn B, Wensaas K-A, Emberland KE, Fadnes LT, Litleskare S, Diaz E, Ruths S, Rørtveit G, Waage S. Rastløse bein – en studie fra allmennpraksis. Tidsskrift for den norske legeforening 2021; 141: 1516-1521. PMID: 34758599
  9. Bjorvatn B, Pallesen S. Irregular sleep-wake rhythm disorder. Encyclopedia of Sleep and Circadian Rhythms, 2nd Edition. Reference Module in Neuroscience and Biobehavioral Psychology 2021: 1-7.
  10. Bjorvatn B. Behandling av langvarige søvnproblemer (kronisk insomni) uten medisiner. Revidert tekst på www.sovno.no, 2021.
  11. Bjorvatn B. Lysbehandling ved søvnsykdommer. Revidert tekst på www.sovno.no, 2021.
  12. Bjorvatn B. Melatoninbehandling av søvnproblemer. Revidert tekst på www.sovno.no, 2021.
  13. Bjorvatn B. Medikamentell behandling av søvnproblemer. Revidert tekst på www.sovno.no, 2021.
  14. Bjorvatn B. Forsinket søvnfaselidelse. Revidert tekst på www.sovno.no, 2021.
  15. Bjorvatn B. Insomni. Revidert tekst på www.sovno.no, 2021.
  16. Bjorvatn B. Døgnrytmelidelser. Revidert tekst på www.sovno.no, 2021.
  17. Bjorvatn B. Jet lag. Revidert tekst på www.sovno.no, 2021.
  18. Bjorvatn B. Hypersomnier. Revidert tekst på www.sovno.no, 2021.
  19. Bjorvatn B. Narkolepsi. Revidert tekst på www.sovno.no, 2021.
  20. Bjorvatn B. Parasomnier. Revidert tekst på www.sovno.no, 2021.
  21. Bjorvatn B. Gå i søvne (søvngjengeri - somnambulisme). Revidert tekst på www.sovno.no, 2021.
  22. Bjorvatn B. Nattlige skrekkanfall (pavor nocturnus). Revidert tekst på www.sovno.no, 2021.
  23. Bjorvatn B. Restless legs syndrom. Revidert tekst på www.sovno.no, 2021.
  24. Bjorvatn B. Periodiske beinbevegelser under søvn (PLMS). Revidert tekst på www.sovno.no, 2021.
  25. Bjorvatn B. Normal søvn. Revidert tekst på www.sovno.no, 2021.
  26. Bjorvatn B. Søvnregistrering og søvnstadier. Revidert tekst på www.sovno.no, 2021.
  27. Bjorvatn B. Årsaker til søvnproblemer. Revidert tekst på www.sovno.no, 2021.
  28. Bjorvatn B. Søvndagbok – Kartlegg din egen søvn. Revidert tekst på www.sovno.no, 2021.
  29. Bjorvatn B. Søvnhygiene – gode råd ved søvnproblemer. Revidert tekst på www.sovno.no, 2021.
  30. Bjorvatn B. Døgnrytmen vår. Revidert tekst på www.sovno.no, 2021.
  31. Bjorvatn B. Vinterdepresjon. Revidert tekst på www.sovno.no, 2021.
  32. Bjorvatn B. Søvnproblemer – hvordan skal de behandles. Revidert tekst på www.sovno.no, 2021.
  33. Bjorvatn B. Søvnens betydning for å holde oss friske og raske i dagens pandemi. SØVN 2021; 13(1): 4-5.
  34. Bjørkum, A.A., Carrasco Duran, A., Frode, B. et al. Human blood serum proteome changes after 6 hours of sleep deprivation at night. Sleep Science Practice 5, 14 (2021). https://doi.org/10.1186/s41606-021-00066-2
  35. Bjørseth, B., Simensen, J. O., Bjørnethun, A., Griffiths, M. D., Erevik, E. K., Leino, T., & Pallesen, S. (2021). The effects of responsible gambling pop-up messages on gambling behaviors and cognitions: A systematic review and meta-analysis. Frontiers in Psychology, 25, article no. 601800.
  36. Blytt KM, Flo-Groeneboom E, Erdal A, Bjorvatn B, Husebo B. Sleep and its association with pain and depression in nursing home patients with advanced dementia – a cross-sectional study. Frontiers in Psychology 2021; 12: 633959. PMID: 33959072.
  37. Brandao LEM, Martikainen T, Merikanto I, Holzinger B, Morin CM, Espie CA, Bolstad CJ, Leger D, Chung F, Plazzi G, Dauvilliers Y, Matsui K, De Gennaro L, Sieminski M, Nadorff MR, Chan NY, Wing YK, Mota-Rolim SA, Inoue Y, Partinen M, Benedict C, Bjorvatn B, Cedernaes J. Social jetlag changes during the COVID-19 pandemic as a predictor of insomnia – a multi-national survey study. Nature and Science of Sleep 2021; 13: 1711-1722. PMID: 34675720
  38. Bredeli, E., Vestergaard, C. L., Sivertsen, B., Kallestad, H., Øverland, S., Ritterband, L. M., ... & Vedaa, Ø. (2022). Intraindividual variability in sleep among people with insomnia and its relationship with sleep, health and lifestyle factors: an exploratory study. Sleep medicine, 89, 132-140.
  39. Chegini, R., Notelears, G., Pallesen, S., & Sagoe, D. (2021). Aggression and psychological distress in male and female anabolic-androgenic steroid users: A multigroup latent class analysis. Frontiers in Psychiatry, 12, article no. 629428.
  40. Chegini, R., Pallesen, S., McVeigh, J., & Sagoe. D. (2021). Anabolic-androgenic steroid administration increases self-reported aggression in healthy males: A systematic review and meta-analysis of experimental studies. Psychopharmacology, 238, 1911-1922.
  41. Chegeni, R., Pallesen, S., & Sagoe, D. (2021). Aggression and criminality in androgen abusers. Current Opinion in Endocrinology and Diabetes, 28, 615-624.
  42. Chung F, Waseem R, Pham C, Penzel T, Han F, Bjorvatn B, Morin CM, Holzinger B, Espie CA, Benedict C, Cedernaes J, Saaresranta T, Wing YK, Nardorff MR, Dauvilliers Y, De Gennaro L, Plazzi G, Merikanto I, Matsui K, Leger D, Sieminski M, Mota-Rolim S, Inoue Y, Partinen M, ICOSS group. The association between high-risk of sleep apnea, comorbidities, and risk of COVID-19: A population based international harmonized study. Sleep & Breathing 2021; 25: 849-860. PMID: 33907966.
  43. Danielsen, Y.S., Pallesen, S., Sivertsen, B., Stormark, K. M., & Hysing, M. (2021). Weekday time in bed and obesity risk in adolescence. Obesity Science & Practice, 7, 45-52.
  44. Danielsen, Y. S., Skjåkødegård, H. F., Bjorvatn, B., Juliusson, P. B., & Pallesen, S. (2021). Polysomnographic comparison of sleep in children with obesity without suspected sleep problems and normal weight children. Obesity Research and Clinical Practice, 2021, e12493.
  45. Engebø, J., Torsheim. T., & Pallesen, S. (2021). Regulatory measures’ effect on gambling participation: Experiences from Norway. Frontiers in Psychiatry, 12, article no. 672471.
  46. Erevik, E. K., Pallesen, S., Vedaa, Ø., Andreassen, C. S., Dhir, A., & Torsheim, T. (2021). General and alcohol-related social media use and mental health: A large-sample longitudinal study. International Journal of Mental Health and Addiction, 19, 1991-2002.
  47. Falch-Madsen, J., Wichstrøm, L., Pallesen, S., Jensen, M. R., Bertheussen, L., Solhaug, S., & Steinsbekk, S. (2021). Predictors of diagnostically defined insomnia in child and adolescent community samples: A literature review. Sleep Medicine, 87, 241-249.
  48. Falch-Madsen, J., Wichstrøm, L., Pallesen, S., Ranum, B., Steinsbekk, S. (2021). Child and family predictors of insomnia from early childhood to adolescence. Sleep Medicine, 87, 220-226.
  49. Falskog F, Landsem AM, Meland E, Bjorvatn B, Hjelle OP, Mildestvedt T. Patients want their doctors’ help to increase physical activity: a cross sectional study in general practice. Scandinavian Journal of Primary Health Care 2021; 39: 131-138. PMID: 33871303.
  50. Ferini-Strambi L, Auer R, Bjorvatn B, Castronovo V, Franco O, Gabutti L, Galbiati A, Hajak G, Khatami R, Kitajima T, McEvoy D, Nissen C, Perlis M, Pevernagie DA, Randerath W, Riemann D, Rizzo G, van Someren E, Vgontzas A, Barazzoni F, Bassetti C, the European Sleep Foundation. Insomnia disorder: clinical and research challenges for the 21st century. European Journal of Neurology 2021; 28: 2156-2167. PMID: 33619858.
  51. Flaa, T. A., Bjorvatn, B., Pallesen, S., Røislien, J., Zakariassen, E., Harris, A., & Waage, S. (2021). Subjective and objective sleep among air ambulance personnel. Chronobiology International, 38, 129-139.
  52. Finserås, T., Krossbakken, E., Pallesen, S., Mentzoni, R. A., King, D., Griffiths, M. D., & Molde, H. (2021). Near miss in a video game: An experimental study. International Journal of Mental Health and Addiction, 19, 418-428.
  53. Forthun I, Waage S, Pallesen S, Moen BE, Bjorvatn B. Sleep medication and melatonin use among Norwegian nurses – a cross-sectional study. Nursing Open in press. PMID: 34534412
  54. Fränkl EC, Scarpelli S, Nadorff MR, Bjorvatn B, Bolstad C, Chan NY, Chung F, Dauvilliers Y, Espie CA, Inoue Y, Leger D, Macedo T, Matsui K, Merikanto I, Morin CM, Mota-Rolim S, Partinen M, Penzel T, Plazzi G, Sieminski M, Wing YK, De Gennaro L, Holzinger B. How our dreams changed during the COVID-19 pandemic: effects and correlates of dream recall frequency – a multinational study on 19,355 adults. Nature and Science of Sleep 2021; 13: 1573-1591. PMID: 34588830
  55. Gjerde K, Lehmann S, Bjorvatn B, Berge M, Thuen F, Berge T, Johansson A. Partner perceptions are associated with objective sensor-measured adherence to oral appliance therapy in obstructive sleep apnea. Journal of Sleep Research 2021; e13462 online ahead of print. PMID: 34490690.
  56. Hansen, T., Nilsen, T. S., Yu, B., Knapstad, M., Skogen, J. C., Vedaa, Ø., & Nes, R. B. (2021). Locked and lonely? A longitudinal assessment of loneliness before and during the COVID-19 pandemic in Norway. Scandinavian Journal of Public Health, 49(7), 766-773.
  57. Hansen, T., Sevenius Nilsen, T., Knapstad, M., Skirbekk, V., Skogen, J., Vedaa, Ø., & Nes, R. B. (2021). Covid-fatigued? A longitudinal study of Norwegian older adults’ psychosocial well-being before and during early and later stages of the COVID-19 pandemic. European Journal of Ageing, 1-11.
  58. Hjetland, G. J., Kolberg, E., Pallesen, S., Thun, E., Nordhus, I. H., Bjorvatn, B., & Flo-Groeneboom, E. (2021). Ambient bright light treatment improved proxy-rated sleep but not sleep measured by actigraphy in nursing home patients with dementia: A placebo-controlled randomized trial. BMC Geriatrics, 21, article no. 312.
  59. Hrozanova, M., Klöckner, C., Sandbakk, Ø., Pallesen, S., & Moen, F. (2021). Sex differences in sleep and influence of the menstrual cycle on women’s sleep in junior endurance athletes. PLoS One, 16, e0253376.
  60. Holmen, H., Riiser, K., Løyland, B., Sandbekken, I. H., Almendingen, K., Andenæs, R. A., Bjønnes, A. K., Fagerlund, B. H., Früh, E. A., Helseth, S., Kvarme, L. G., Leegaard, M., Misvær, N., Pallesen, S., Rasalingam, A., Ravn, I., Ribu, L., Rostad, H. M., Sparboe-Bilsen, B., Sæterstrand, T. M., Torbjørnsen, A., Utne, I., Valenberg, B. T., Valla, L., Winger, A., & Grov, E. K. (2021). Students’ top 10 priorities of research uncertainties on students’ sleep: a pragmatic James Lind Alliance approach. BMJ Open, 11, e043697.
  61. Kallestad, H., Saksvik, S., Vedaa, Ø., Langsrud, K., Morken, G., Lydersen, S., ... & Scott, J. (2021). 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. BMJ open, 11(6), e050661.
  62. Kallestad, H., Scott, J., Vedaa, Ø., Lydersen, S., Vethe, D., Morken, G., ... & Langsrud, K. (2021). Mode of delivery of Cognitive Behavioral Therapy for Insomnia: a randomized controlled non-inferiority trial of digital and face-to-face therapy. Sleep, 44(12), zsab185.
  63. Kolberg, E., Hjetland, G. H., Thun, E., Pallesen, S., Nordhus, I. H., Husebø, B., & Flo-Groeneboom, E. (2021). The effects of bright light treatment on affective symptoms in people with dementia: a 24-week cluster randomized controlled trial. BMC Psychiatry, 21, article no. 377.
  64. Kolberg, E., Pallesen, S., Hjetland, G. J., Nordhus, I. H., & Flo-Groeneboom, E. (2021). The effect of bright light treatment on rest–activity rhythms in people with dementia: A 24-week cluster randomized controlled trial. Clocks & Sleep, 3, 449-464.
  65. Kristensen, J. H., Pallesen, S., King, D. L., Hysing, M., & Erevik, E. K. (2021). Problematic gaming and sleep: A systematic review and meta-analysis. Frontiers in Psychiatry, 12, article no. 675237.
  66. Liset R, Grønli J, Henriksen RE, Henriksen TEG, Nilsen RM, Pallesen S (2021) Sleep, evening light exposure and perceived stress in healthy nulliparous women in the third trimester of pregnancy. PLoS ONE 16(6): e0252285. https:// doi.org/10.1371/journal.pone.0252285
  67. Liset R, Grønli J, Henriksen RE, Henriksen TEG, Nilsen RM, Pallesen S (2022) A randomized controlled trial on the effects of blue-blocking glasses compared to partial blue-blockers on sleep outcomes in the third trimester of pregnancy. PLoS ONE 17(1): e0262799. https://doi.org/10.1371/ journal.pone.0262799
  68. Liset R, Grønli J, Henriksen RE, Henriksen TEG, Nilsen RM, Pallesen S. A randomized controlled trial on the effect of blue-blocking glasses compared to partial blue-blockers on melatonin profile among nulliparous women in third trimester of the pregnancy. Neurobiol Sleep Circadian Rhythms. 2021 Dec 29;12:100074. doi: 10.1016/j.nbscr.2021.100074. PMID: 35024497; PMCID: PMC8728098.
  69. Lundetræ RS, Saxvig IW, Aurlien H, Lehmann S, Bjorvatn B. Effect of continuous positive airway pressure on symptoms and prevalence of insomnia in patients with obstructive sleep apnea. A longitudinal study. Frontiers in Psychology 2021; 12: 691495. PMID: 34367017.
  70. Lundetræ RS, Saxvig IW, Lehmann S, Bjorvatn B. Effect of continuous positive airway pressure on symptoms of anxiety and depression in patients with obstructive sleep apnea. Sleep & Breathing 2021; 25: 1277-1283. PMID: 33098538.
  71. Merikanto I, Kortesoja L, Benedict C, Chung F, Cedernaes J, Espie CA, Morin CM, Dauvilliers Y, Partinen M, De Gennaro L, Wing YK, Chan NY, Inoue Y, Matsui K, Holzinger B, Plazzi G, Mota-Rolim SA, Leger D, Penzel T, Bjorvatn B. Evening-types show highest increase of sleep and mental health problems during the COVID-19 pandemic – multinational study on 19,267 adults. SLEEP 2021: zsab216 online ahead of print. PMID: 34432058.
  72. Morin CM, Bjorvatn B, Chung F, Holzinger B, Partinen M, Penzel T, Ivers H, Wing YK, Chan NY, Merikanto I, Mota-Rolim S, Macedo T, De Gennaro L, Leger D, Dauvilliers Y, Plazzi G, Nadorff MR, Bolstad CJ, Sieminski M, Benedict C, Cedernaes J, Inoue Y, Han F, Espie CA. Insomnia, anxiety and depression during the COVID-19 pandemic: An international collaborative study. Sleep Medicine 2021; 87: 38-45. PMID: 34508986.
  73. Mæland, S., Bjørknes, R., Lehmann, S., Sandal, G. M., Hazell, W., Rabben, Å. K., Vedaa, Ø. Skogen, J. C. & Fadnes, L. T. (2021). How the Norwegian population was affected by non-pharmaceutical interventions during the first six weeks of the COVID-19 lockdown. Scandinavian Journal of Public Health, 14034948211027817
  74. Nilsen S, Bjorvatn B, Kristoffersen ES. PraksisNett – status etter tre år. Utposten 2021, utgave 2: 18-19.
  75. Nielsen, M. B., Pallesen, S., Einarsen, S. V., Harris, A., Rajalingham, D., & Gjerstad, J. (2021). Associations between exposure to workplace bullying and insomnia: A cross-lagged prospective study of causal directions. Archives of Occupational and Environmental Health, 94, 1003-1011.
  76. Olsen, O. K., Pallesen, S., & Myrseth, H. (2021). Gaming in the military: A longitudinal study of changes in gaming behavior among conscripts during military service and associated risk factors. Frontiers in Psychiatry, 12, article no. 591038.
  77. Opsahl UL, Berge M, Lehmann S, Bjorvatn B, Opsahl P, Johansson A. Acoustic pharyngometry – a new method to facilitate oral appliance therapy. Journal of Oral Rehabilitation 2021; 48: 601-613. PMID: 33314265.
  78. Pallesen, S., Bjorvatn, B., Waage, S., Harris, A., & Sagoe, D. (2021). Prevalence of shift work disorder: A systematic review and meta-analysis. Frontiers in Psychology, 12, article no. 638252.
  79. Pallesen, S., Mentzoni, R. A., Morken, A. M., Engebø, J., Kaur, P., & Erevik, E. K. (2021). Changes over time and predictors of online gambling in three Norwegian population studies 2013-2019. Frontiers in Psychiatry, 12, article no. 597615.
  80. Pallesen, S., Thun, E., Waage, S., Vedaa, Ø., Harris, A., Blytt, K. M., Kaur, P., & Bjorvatn, B. (2021). Stability and change of the personality traits languidity and flexibility in a sample of nurses: A 7-8 year follow-up study. Frontiers in Psychology, 12, article no. 652569.
  81. Partinen M, Bjorvatn B, Holzinger B, Chung F, Penzel T, Espie CA, Morin CM, ICOSS-collaboration group. Sleep and circadian problems during the coronavirus disease 2019 (COVID-19) pandemic: the International COVID-19 Sleep Study (ICOSS). Journal of Sleep Research 2021; 30: e13206. PMID: 33179820.
  82. Partinen M, Holzinger B, Morin CM, Espie CA, Chung F, Penzel T, Benedikt C, Bolstad CJ, Cedernaes J, Chan NY, Dauvilliers Y, De Gennaro L, Han F, Inoue Y, Matsui K, Leger D, Cunha AS, Merikanto I, Mota-Rolim S, Nadorff M, Plazzi G, Schneider J, Sieminski M, Wing YK, Bjorvatn B. Sleep and daytime problems during the COVID-19 pandemic and effects of coronavirus infection, confinement and financial suffering: a multinational survey using a harmonized questionnaire. BMJ Open 2021; 11: e050672.  PMID: 34903540.
  83. Ranum, B. M., Wichstrøm, L., Pallesen, S., Falch-Madsen, J., & Steinsbekk, S. (2021). Persistent short sleep from childhood to adolescence: Child, parent and peer predictors. Nature and Science of Sleep, 13, 163-175.
  84. Saeed S, Romarheim A, Mancia G, Saxvig IW, Gulati S, Lehmann S, Bjorvatn B. Characteristics of hypertension and arterial stiffness in obstructive sleep apnea: A Scandinavian experience from a prospective study of 6408 normotensive and hypertensive patients. JHC. In press.
  85. Sagoe, D., Griffiths, M. D., Erevik, E. K., Høyland, T., Leino, T., Lande, I. A., Sigurdsson, M. E., & Pallesen, S. (2021). Internet-based treatment of gambling problems: A systematic review and meta-analysis of randomized controlled trials. Journal of Behavioral Addictions, 10, 546-565.
  86. Saxvig, I. W., Bjorvatn, B., Hysing, M., Sivertsen, B., Gradisar, M., & Pallesen, S. (2021). Sleep in older adolescents. Results from a large cross-sectional, population-based study. Journal of Sleep Research, 30, e13263.
  87. Saxvig, I. W., Evanger, L. N., Pallesen, S., Hysing, M., Sivertsen, B., Gradisar, M., & Bjorvatn, B. (2021). Circadian typology and implications for adolescent sleep health. Results from a large, cross-sectional, school-based study. Sleep Medicine, 83, 63-70.
  88. Saxvig IW, Pallesen S, Sivertsen B, Hysing M, Evanger LN, Bjorvatn B. Sleep during COVID-19 related school lockdown, a longitudinal study among high school students. Journal of Sleep Research 2021: e13499 online ahead of print. PMID: 34601775
  89. Schønning, V., Dovran, A., Hysing, M., Hafstad, G. S., Stokke, K., Aarø, L. E., Tobiassen, S., Jonassen, J. A. B., Vedaa, Ø. & Sivertsen, B. (2021). Study protocol: the Norwegian Triple-S Cohort Study-establishing a longitudinal health survey of children and adolescents with experiences of maltreatment. BMC public health, 21(1), 1-10.
  90. Scott, J., Kallestad, H., Vedaa, O., Sivertsen, B., & Etain, B. (2021). Sleep disturbances and first onset of major mental disorders in adolescence and early adulthood: a systematic review and meta-analysis. Sleep Medicine Reviews, 57, 101429.
  91. Sivertsen, B., Friborg, O., Pallesen, S., Vedaa, Ø., Hopstock, L. A. (2021). Sleep in the land the of midnight sun and polar night. The Tromsø Study 2015-2016. Chronobiology International, 38, 334-342.
  92. Sivertsen, B., Harvey, A. G, Gradisar, M., Pallesen, S., & Hysing, M. (2021). Delayed sleep-wake phase disorder in young adults: Prevalence and correlates from a national survey of Norwegian university students. Sleep Medicine, 77, 184-191.
  93. Sivertsen, B., Pallesen, S., Friborg, O., Nilsen, K. B., Bakken, Ø. K., Goll, J. B., & Hopstock, L. A. (2021). Sleep patterns and insomnia in a large population-based study of middle-aged and older adults: The Tromsø study 2015-2016. Journal of Sleep Research, 30, e13095.  
  94. Skjøkødegård, H. F., Danielsen, Y. S., Frisk, B., Hystad, S. W., Roelants, M., Pallesen, S., Conlon, R. P. K., Wilfley, D. E., & Juliusson, P. B. (2021). Beyond sleep duration: Sleep timing as a risk factor for childhood obesity. Pediatric Obesity, 16, e12698.
  95. Strømme, R., Børstad, K. H., Rø, A. E., Erevik, E. K., Sagoe, D., Chegeni, R., Mentzoni, R. A., Kaur, P., & Pallesen, S. (2021). The relationship between gambling problems and the five-factor model of personality: A systematic review and meta-analysis. Frontiers in Psychology, 12, article no. 740235.
  96. Sæther, S. M. M., Askeland, K. G., Pallesen, S., & Erevik, E. K. (2021). Smoking and snus use among Norwegian students: Demographic, personality and substance use characteristics. Nordic Studies on Alcohol and Drugs, 38, 141-160.
  97. Søbstad, J., Pallesen, S., Bjorvatn, B., Costa, G., & Hystad, S. W. (2021). Predictors of turnover intention among Norwegian nurses - a cohort study. Health Care Management Review, 46, 367-374.
  98. Thun E, Waage S, Bjorvatn B, Moen BE, Vedaa Ø, Blytt KM, Pallesen S. Short sleep duration and high exposure to quick returns are associated with impaired everyday memory in shift workers. Nurs Outlook. 2021 May-Jun;69(3):293-301. doi: 10.1016/j.outlook.2020.09.008. Epub 2020 Oct 27. PMID: 33127075.
  99. Vestergaard, C. L., Vedaa, Ø., Simpson, M. R., Faaland, P., Vethe, D., Kjørstad, K., ... & Kallestad, H. (2021). The effect of sleep–wake intraindividual variability in digital cognitive behavioral therapy for insomnia: a mediation analysis of a large-scale RCT. Sleep, 44(10), zsab118.
  100. Vietheer A, Kiserud T, Lie RT, Haaland ØA, Kessler J. Sleep and physical activity from before conception to the end of pregnancy in healthy women: a longitudinal actigraphy study. Sleep Med. 2021 Jul;83:89-98. doi: 10.1016/j.sleep.2021.04.028. Epub 2021 Apr 28. PMID: 33991895.
  101. Waage, S., Pallesen, S., Moen, B. E., Vedaa, Ø., Thun, E., Buchvold, H., Blytt, K. M., & Bjorvatn, B. (2021). Changes in work schedule affect the prevalence of shift work disorder among Norwegian nurses – a two year follow-up study. Chronobiology International, 38, 924-932.  
  102. Waage, S., Pallesen, S., Vedaa, Ø., Buchvold, H., Blytt, K. M., Harris, A., & Bjorvatn, B. (2021). Sleep patterns among Norwegian nurses between the first and second wave of the COVID-19 pandemic. BMC Nursing, 20, article no. 105.
  103. Wisor JP, Holmedahl NH, Saxvig IW, Fjeldstad OM, Weitzberg E, Grønli J, Engan HK. Effect of dietary nitrate supplementation on sleeo in chronic obstructive pulmonary disease patients. Nat Sci Sleep, 2021; 13: 435-446. PMID: 33790676
  104. Zakariassen E, Waage S, Harris A, Gatterbauer-Trischler P, Lang B, Voelckel W, Pallesen S, Bjorvatn B. Causes and Management of Sleepiness Among Pilots in a Norwegian and an Austrian Air Ambulance Service-A Comparative Study. Air Med J. 2019 Jan-Feb;38(1):25-29. doi: 10.1016/j.amj.2018.11.002. Epub 2018 Dec 13. PMID: 30711081.

Articles 2020

  1. Baglioni C., Altena E, Bjorvatn B, Blom K, Bos T, Bothelius K, Devoto A, Espie C, Frase L, Gavriloff D, Hion T, Hoflehner A, Holzinger B, Järnefelt H, Jernelöv S, Johann A, Lombardo C, Nissen C, Palagini L, Peeters G, Perlis ML, Posner D, Schlarb A, Spiegelhalder K, Wichniak A, Riemann D. The European Academy for cognitive-behavioural therapy for insomnia: An initiative of the European Insomnia Network to promote implementation and dissemination of treatment. Journal of Sleep Research 2020; 29(2): e12967. PMID: 31856367.
  2. Bjorvatn B, Pallesen S, Waage S, Thun E, Blytt KM. 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.  Scandinavian Journal of Work Environment & Health in press in press. PMID: 33080034.
  3. Bjorvatn B, Axelsson J, Pallesen S, Waage S, Vedaa Ø, Blytt KM, Buchvold HV, Moen BE, Thun E. The association between shift work and immunological biomarkers in nurses. Frontiers in Public Health 2020; 8: article 415. PMID: 33042933.
  4. Bjorvatn, B, Saxvig IW, Waage S, Pallesen S. Self-reported seasonality is strongly associated with chronotype and weakly associated with latitude. Chronobiology International 2020 Nov 29;1-8. PMID: 33249931.
  5. Bjorvatn B. Er du lei av å stille klokken hver vår og høst? SØVN 2020; 12(1): 4-5.
  6. Bjorvatn B. Hvordan påvirker COVID-19 pandemien søvnmønsteret vårt? SØVN 2020; 12(2): 4-5.
  7. Bjorøy I, Jørgensen VA, Pallesen S, Bjorvatn B. The prevalence of insomnia subtypes in relation to demographic characteristics, anxiety, depression, alcohol consumption and use of hypnotics. Frontiers in Psychology 2020; 11:527. PMID: 32265811.
  8. Bjorøy I, Jørgensen VA, Pallesen S, Bjorvatn B. Forekomsten av angst, depresjon og bruk av alkohol og hypnotika varierer i ulike insomni subtyper. Best Practice, oktober 2020. 
  9. Blytt, K.M., Flo-Groeneboom, E. New knowledge on the impact of sleep disturbances illustrates the urgent need to address sleep problems in nursing home residents. International Psychogeriatrics, 2020
  10. Danielsen, Y.S., Pallesen, S., Sivertsen, B., Stormark, K.M., Hysing, M. Weekday time in bed and obesity risk in adolescence. Obesity Science & Practice 2020, DOI: 10.1002/osp4.455
  11. Flaa, T. A., Bjorvatn, B., Pallesen, S., Røislien, J., Zakariassen, E., Harris, A., & Waage, S. (2020). Subjective and objective sleep among air ambulance personnel. Chronobiology International, 1-11. https://doi.org/10.1080/07420528.2020.1802288. PMID: 32815408.
  12. Garde AH, Begtrup L, Bjorvatn B, Bonde JP, Hansen J, Hansen ÅM, Härmä M, Jensen MA, Kecklund G, Kolstad H, Larsen AD, Lie JA, Moreno C, Nabe-Nielsen K, Sallinen M. How to schedule night shift work in order to reduce health and safety risks. Scandinavian Journal of Work, Environment & Health 2020; 46: 557-569. PMID: 32895725.
  13. Hamre KV, Einarsen SV, Hoprekstad ØL, Pallesen S, Bjorvatn B, Waage S, Moen BE, Harris A. Accumulated long-term exposure to workplace bullying impairs psychological hardiness: A five-year longitudinal study among nurses. International Journal of Environmental Research and Public Health 2020; 17: 2587. PMID: 32290042.
  14. Hjetland, G. J., Pallesen, S., Thun, E., Kolberg, E., Nordhus, I. H., & Flo, E. (2020). Light interventions and sleep, circadian, behavioral, and psychological disturbances in dementia: A systematic review of methods and outcomes. Sleep Medicine Reviews, 101310.
  15. Hjetland, G. J., Nordhus, I. H., Pallesen, S., Cummings, J., Tractenberg, R. E., Thun, E., ... & Flo, E. (2020). An Actigraphy-Based Validation Study of the Sleep Disorder Inventory in the Nursing Home. Frontiers in psychiatry, 11, 173.
  16. Järnefelt H, Vanttola P, Waage S, Bjorvatn B. Assessment and treatment of shift work disorder. In: Working hours, health, well-being and participation in working life. Current knowledge and recommendations for health and safety. Finnish Institute of Occupational Health (editors Härmä and Karhula, Helsinki), 2020; 65-67.
  17. Jåbekk PT, Jensen RM, Sandell MB, Haugen E, Katralen LM, Bjorvatn B. A randomized controlled pilot trial of sleep health education on body composition changes following 10 weeks resistance exercise. The Journal of Sports Medicine and Physical Fitness 2020; 60: 743-748. PMID: 32141273.
  18. Katsifaraki M, Nilsen KB, Christensen JO, Wærsted M, Knardahl S, Bjorvatn B, Härmä M, Matre D. Pain complaints after consecutive nights and quick returns in nurses with 3-shift rotation. BMJ Open 2020; 10: e035533. doi:10.1136/ bmjopen-2019-035533. PMID: 32912941.
  19. Lundetræ RS, Saxvig IW, Lehmann S, Bjorvatn B. Effect of continuous positive airway pressure on symptoms of anxiety and depression in patients with obstructive sleep apnea. Sleep & Breathing in press. PMID: 33098538.
  20. Leiten, E.O., Eagan, T.M.L., Martinsen, E.M.H., Nordeide, E., Husebø, G.R., Knudsen, K.S., Lehmann, S., Svanes, Ø., Bakke, P.S., Nielsen, R. (2020). Complications and discomfort after research bronchoscopy in the MicroCOPD study. BMJ Open Resp Res;7:e000449.
  21. Matre D, Nilsen KB, Katsifaraki M, Waage S, Pallesen S, Bjorvatn B. Pain complaints are associated with quick returns and insomnia among Norwegian nurses, but do not differ between shift workers and day only workers. International Archives of Occupational and Environmental Health 2020; 93: 291-299. PMID: 31691014.
  22. Nielsen, M.N., Pallesen, S., Einarsen, S.V., Harris, A., Rajalingam, D., Gjerstad, J. Associations between exposure to workplace bullying and insomnia: A cross-lagged prospective study of causal directions. International Archives of Occupational and Environmental Health. 2020. (IAOE-D-20-00304R2)
  23. Nielsen, M.N., Harris, A, Pallesen, S, Einarsen, S.V. Workplace bullying and sleep – A systematic review and meta-analysis of the research literature. Sleep Medicine Reviews 2020, vol 51.
  24. Opsahl UL, Berge M, Lehmann S, Bjorvatn B, Opsahl P, Johansson A. Acoustic pharyngometry – a new method to facilitate oral appliance therapy. Journal of Oral Rehabilitation in press. PMID: 33314265.
  25. Olufsen IS, Sørensen ME, Bjorvatn B. Nye diagnosekriterier for insomni og sammenhengen mellom insomni, angst og depresjon. Tidsskrift for Den norske legeforening 2020; 140: 46-50. PMID: 31948220.
  26. Pallesen S, Hamre HS, Lang N, Bjorvatn B. Doxazosin for the treatment of nightmare disorder: A diary-based case study. Sage Open Medical Case Reports 2020; 8: 2050313X20936079. PMID: 32647580.
  27. Pallesen S, Waage S, Thun E, Andreassen CS, Bjorvatn B. A national survey on how sexual activity is perceived to be associated with sleep. Sleep and Biological Rhythms 2020; 18: 65-72. 
  28. Pallesen S, Bjorvatn B, Moen BE, Thun E, Waage S. Slik påvirker skiftarbeid sykepleieres søvn og helse. Sykepleien.no/forskning, publisert 14.1.2020. https://sykepleien.no/forskning/2019/12/slik-pavirker-skiftarbeid-sykepleieres-sovn-og-helse
  29. Partinen M, Bjorvatn B, Holzinger B, Chung F, Penzel T, Espie CA, Morin CM, ICOSS-collaboration group. Sleep and circadian problems during the coronavirus disease 2019 (COVID-19) pandemic: the International COVID-19 Sleep Study (ICOSS). Journal of Sleep Research 2020;00:e13206. PMID: 33179820.
  30. Saxvig IW, Bjorvatn B, Hysing M, Sivertsen B, Gradisar M, Pallesen S. Sleep in older adolescents. Results from a large cross-sectional, population-based study. Journal of Sleep Research 2020 in press. PMID: 33350033.
  31. Schønning, V., Hjetland, G. J., Aarø, L. E., & Skogen, J. C. (2020). Social Media Use and Mental Health and Well-Being Among Adolescents–A Scoping Review. Frontiers in psychology, 11, 1949
  32. Skjåkødegård, H. F., Danielsen, Y. S., Frisk, B., Hystad, S. W., Roelants, M., Pallesen, S.,Conlon, R.P.K.,Wilfley D.E.,Juliusson, P. B. (2020). Beyond sleep duration: Sleep timing as a risk factor for childhood obesity. Pediatric Obesity.10.1111/ijpo.12698
  33. Steine IM, Nielsen B, Porter PA, Krystal JH, Winje D, Grønli J, Milde AM, Bjorvatn B, Nordhus IH, Pallesen S. Predictors and correlates of lifetime and persistent non-suicidal self-injury and suicide attempts among adult survivors of childhood sexual abuse. European Journal of Psychotraumatology 2020; 11:1, 1815282. PMID: 33312451.
  34. Steine I, Winje D, Krystal JH, Milde AM, Bjorvatn B, Nordhus IH, Grønli J, Pallesen S. Longitudinal relationships between perceived social support and symptom outcomes: Findings from a sample of adult survivors of childhood sexual abuse. Child Abuse & Neglect 2020; 107: 104566. PMID: 32526550.
  35. Steine IM, Bjorvatn B, Winje D, Grønli J, Nordhus IH, Milde AM, Pallesen S. Seksuelle overgrep i barndommen og arbeidsuførhet i voksen alder: Funn fra et norsk befolkningsutvalg. Tidsskrift for Norsk Psykologforening 2020; 260-271.
  36. Steine IM, Bjorvatn B, Winje D, Grønli J, Nordhus IH, Milde AM, Pallesen S. Faktorer som henger sammen med økt risiko for arbeidsuførhet blant personer utsatt for seksuelle overgrep i barndommen. Tidsskrift for Norsk Psykologforening 2020; 348-359.
  37. Sunde E, Mrdalj J, Pedersen T, Thun E, Bjorvatn B, Grønli J, Harris A, Waage S, Pallesen S. Role of nocturnal light intensity on adaptation to three consecutive night shifts: a counterbalanced crossover study. Occupational Environmental Health (OEM) 2020; 77: 249-255. PMID: 32019847.
  38. Sunde E, Pedersen T, Mrdalj J, Thun E, Grønli J, Harris A, Bjorvatn B, Waage S, Skeene D, Pallesen S. Blue-enriched white light improves performance but not subjective alertness and circadian adaptation during three consecutive simulated night shifts. Frontiers in Psychology 2020; 11: 2172. PMID: 33013558.
  39. Sunde E, Pedersen T, Mrdalj J, Thun E, Grønli J, Harris A, Bjorvatn B, Waage S, Skene D, Pallesen S. Alerting and circadian effects of short-wavelength vs. long-wavelength narrow-bandwidth light during a simulated night shift. Clocks & Sleep 2020; 2: 502-522. PMID: 33255613.
  40. Søbstad JH, Pallesen S, Bjorvatn B, Costa G, Hystad SW. Predictors of turnover intention among Norwegian nurses: A cohort study. Health Care Management Review in press. PMID: 32109924.
  41. Thun E, Waage S, Bjorvatn B, Moen BE, Vedaa Ø, Blytt KM, Pallesen S. Short sleep duration and high exposure to quick returns are associated with impaired everyday memory in shift workers. Nursing Outlook 2020 in press. PMID: 33127075.
  42. Vedaa Ø, Harris A, Waage S, Bjorvatn B, Thun E, Buchvold HV, Djubedal ILR, Pallesen S. A longitudinal study on the association between quick returns and work-related accidents. Scandinavian Journal of Work, Environment & Health 2020; 46: 645-649. PMID: 32632456.

Articles 2019

  1. Bjorvatn, B., Kristoffersen, E. S., Halvorsen, P. A., Fors, E. A., Nilsen, S., & Rortveit, G. (2019). New infrastructure for research in general practice. Tidsskr Nor Laegeforen, 139(1). doi:10.4045/tidsskr.18.0689.
  2. Bjorvatn B. Hvordan ivaretar Nasjonal kompetansetjeneste for søvnsykdommer sitt mandat? SØVN 2019; 11(1): 4-5.
  3. Engstrøm M, Aarrestad S, Eldøen G, Alme A, Bjørge T, Miljeteig H, Bjorvatn B, Knudsen S, Indrekvam S, Nilsen KB. Anbefalinger for utførelse av objektive søvnundersøkelser. SØVN 2019; 11(1): 8-13.
  4. Erevik, E. K., Torsheim, T., Andreassen, C. S., Krossbakken, E., Vedaa, O., & Pallesen, S. (2019). The associations between low-level gaming, high-level gaming and problematic alcohol use. Addict Behav Rep, 10, 100186. doi:10.1016/j.abrep.2019.100186
  5. Erevik, E. K., Pallesen, S., Andreassen, C. S., Vedaa, Ø., Skogstad, A., Dhir, A., & Torsheim, T. (2019). Demographics, Personality and Substance-Use Characteristics Associated with Forming Romantic Relationships. Evolutionary Psychological Science, 1-13
  6. Fetveit A, Straand J, Bjorvatn B, Kristoffersen ES. Self-reported sleeplessness in 12,655 persons living in the north of Norway: The Tromsø study. Sleep Science 2019; in press.
  7. Flaa, T. A., Harris, A., Bjorvatn, B., Gundersen, H., Zakariassen, E., Pallesen, S., & Waage, S. (2019). Sleepiness among personnel in the Norwegian Air Ambulance Service. Int Arch Occup Environ Health. doi:10.1007/s00420-019-01449-w
  8. Garde, A. H., Harris, A., Vedaa, Ø., Bjorvatn, B., hansen, J., Hansen, Å. M., . . . Harma, M. I. (2019). Working hour characteristics and schedules among nurses in three Nordic countries - a comparative study using payroll data. BMC Nursing, (18:12).
  9. Hagatun, S., Vedaa, O., Nordgreen, T., Smith, O. R. F., Pallesen, S., Havik, O. E., . . . Sivertsen, B. (2019a). The Short-Term Efficacy of an Unguided Internet-Based Cognitive-Behavioral Therapy for Insomnia: A Randomized Controlled Trial With a Six-Month Nonrandomized Follow-Up. Behav Sleep Med, 17(2), 137-155. doi:10.1080/15402002.2017.1301941
  10. Hetlevik Ø, Garre-Fivelsdal GD, Bjorvatn B, Hjørleifsson S, Ruths S. Patient-reported depression treatment and future preferences: an observational study in general practice. Family Practice 2019 in press. PMID: 31215999.
  11. Hjorleifsson, S., Bjorvatn, B., Meland, E., Rortveit, G., Hannestad, Y., & Bondevik, G. T. (2019). The when and how of the gynaecological examination: a survey among Norwegian general practitioners. Scand J Prim Health Care, 37(2), 264-270. doi:10.1080/02813432.2019.1619829
  12. Katsifaraki, M., Nilsen, K. B., Christensen, J. O., Waersted, M., Knardahl, S., Bjorvatn, B., . . . Matre, D. (2019). Sleep duration mediates abdominal and lower-extremity pain after night work in nurses. Int Arch Occup Environ Health, 92(3), 415-422. doi:10.1007/s00420-018-1373-9
  13. Katsifaraki, M., Nilsen, K. B., Waersted, M., Knardahl, S., Lie, J. A. S., Bjorvatn, B., . . . Matre, D. (2018). The association of sleepiness, insomnia, sleep disturbance and pain: a study amongst shiftworking nurses. Sleep and Biological Rhythms, 16(1), 133-140. doi:10.1007/s41105-017-0135-5
  14. Lehmann, S., Ringbaek, T., Lokke, A., Grote, L., Hedner, J., & Lindberg, E. (2019). A randomized trial to determine the impact of indacaterol/glycopyrronium on nighttime oxygenation and symptoms in patients with moderate-to-severe COPD: the DuoSleep study. Int J Chron Obstruct Pulmon Dis, 14, 199-210. doi:10.2147/COPD.S184127
  15. Lien, M., Bredeli, E., Sivertsen, B., Kallestad, H., Pallesen, S., Smith, O. R. F., . . . Vedaa, O. (2019). Short and long-term effects of unguided internet-based cognitive behavioral therapy for chronic insomnia in morning and evening persons: a post-hoc analysis. Chronobiol Int, 36(10), 1384-1398. doi:10.1080/07420528.2019.1647435
  16. Lowden, A., Ozturk, G., Reynolds, A., & Bjorvatn, B. (2019). Working Time Society consensus statements: Evidence based interventions using light to improve circadian adaptation to working hours. Ind Health, 57(2), 213-227. doi:10.2486/indhealth.SW-9
  17. Markussen, H., Lehmann, S., Nilsen, R. M., & Natvig, G. K. (2019). Health-related quality of life as predictor for mortality in patients treated with long-term mechanical ventilation. BMC Pulm Med, 19(1), 13. doi:10.1186/s12890-018-0768-4
  18. Martinsen, E. M. H., Eagan, T. M. L., Leiten, E. O., Nordeide, E., Bakke, P. S., Lehmann, S., & Nielsen, R. (2019). Motivation and response rates in bronchoscopy studies. Multidiscip Respir Med, 14, 14. doi:10.1186/s40248-019-0178-3
  19. Pallesen, S., Jacobsen, D. P., Nielsen, M. B., & Gjerstad, J. (2019). The 5-HTTLPR rs25531 LALA-genotype increases the risk of insomnia symptoms among shift workers. Sleep Medicine, 60, 224-229. doi:10.1016/j.sleep.2019.04.009
  20. Romslo JE, Bjorvatn B. Trøtthet utgjør en sikkerhetsrisiko. Sykepleien.no 2019 https://sykepleien.no/meninger/innspill/2019/02/trotthet-utgjor-en-sikkerhetsrisiko
  21. Sivertsen, B., Vedaa, O., Harvey, A. G., Glozier, N., Pallesen, S., Aaro, L. E., . . . Hysing, M. (2019). Sleep patterns and insomnia in young adults: A national survey of Norwegian university students. Journal of Sleep Research, 28(2). doi:UNSP e1279010.1111/jsr.12790
  22. Sorengaard, T. A., Karlsen, H. R., Langvik, E., Pallesen, S., Bjorvatn, B., Waage, S., . . . Saksvik-Lehouillier, I. (2019a). Insomnia as a Partial Mediator of the Relationship Between Personality and Future Symptoms of Anxiety and Depression Among Nurses. Frontiers in Psychology, 10. doi:ARTN 90110.3389/fpsyg.2019.00901
  23. Sorengaard, T. A., Karlsen, H. R., Langvik, E., Pallesen, S., Bjorvatn, B., Waage, S., . . . Saksvik-Lehouillier, I. (2019b). Insomnia as a Partial Mediator of the Relationship Between Personality and Future Symptoms of Anxiety and Depression Among Nurses. Frontiers in Psychology, 10, 901. doi:10.3389/fpsyg.2019.00901
  24. Stangenes KM, Hysing M, Elgen IB, Halvorsen T, Markestad T, Bjorvatn B. Sleep problems are associated with behavioural problems and respiratory health in children born extremely preterm. A parental questionnaire study. BMJ Peadiatrics Open in press.
  25. Steine, I. M., Skogen, J. C., Krystal, J. H., Winje, D., Milde, A. M., Gronli, J., . . . Pallesen, S. (2019a). Insomnia symptom trajectories among adult survivors of childhood sexual abuse: A longitudinal study. Child Abuse & Neglect, 93, 263-276. doi:10.1016/j.chiabu.2019.05.009
  26. Vedaa, O., Hagatun, S., Kallestad, H., Pallesen, S., Smith, O. R. F., Thorndike, F. P., . . . Sivertsen, B. (2019a). Long-Term Effects of an Unguided Online Cognitive Behavioral Therapy for Chronic Insomnia. Journal of Clinical Sleep Medicine, 15(1), 101-110. doi:10.5664/jcsm.7580
  27. Vedaa, O., Harris, A., Erevik, E. K., Waage, S., Bjorvatn, B., Sivertsen, B., . . . Pallesen, S. (2019). Short rest between shifts (quick returns) and night work is associated with work-related accidents. Int Arch Occup Environ Health. doi:10.1007/s00420-019-01421-8
  28. Vedaa, O., Pallesen, S., Erevik, E. K., Svensen, E., Waage, S., Bjorvatn, B., . . . Harris, A. (2019). Long working hours are inversely related to sick leave in the following 3 months: a 4-year registry study. Int Arch Occup Environ Health, 92(4), 457-466. doi:10.1007/s00420-018-1372-x
  29. Vedaa, Ø., Erevik, E. K., Hysing, M., Hayley, A. C., & Sivertsen, B. (2019). Insomnia, sleep duration and academic performance: a national survey of Norwegian college and university students. Sleep Medicine: X, 100005.
  30. Wilhelmsen-Langeland, A., Saxvig, I. W., Johnsen, E. H., Marszalek, M. A., Andersen, M. I. W., Saetre, V. K., . . . Bjorvatn, B. (2019). Patients with delayed sleep-wake phase disorder show poorer executive functions compared to good sleepers. Sleep Medicine, 54, 244-249. doi:10.1016/j.sleep.2018.10.035
  31. Zakariassen, E., Waage, S., Harris, A., Gatterbauer-Trischler, P., Lang, B., Voelckel, W., . . . Bjorvatn, B. (2019). Causes and Management of Sleepiness Among Pilots in a Norwegian and an Austrian Air Ambulance Service-A Comparative Study. Air Med J, 38(1), 25-29. doi:10.1016/j.amj.2018.11.002
14.03.2022