Browsing Bergen Open Research Archive by Author "Bjorvatn, Bjørn"
Now showing items 61-80 of 105
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Personality factors predict sleep-related shift work tolerance in different shifts at 2-year follow-up: a prospective study
Storemark, Sunniva Straume; Fossum, Ingrid Nesdal; Bjorvatn, Bjørn; Moen, Bente Elisabeth; Flo, Elisabeth; Pallesen, Ståle (Peer reviewed; Journal article, 2013-11-04)Objectives: The aim of the present study was to investigate whether the personality variables morningness, flexibility, languidity and hardiness could predict sleep-related shift work tolerance for the day, evening and ... -
A pilot study of impulse radio ultra wideband radar technology as a new tool for sleep assessment
Pallesen, Ståle; Grønli, Janne; Myhre, Kenneth; Moen, Frode; Bjorvatn, Bjørn; Hanssen, Ingar; Heglum, Hanne Siri Amdahl (Peer reviewed; Journal article, 2018)Study Objectives To validate Impulse radio ultra wideband pulse-doppler radar technology against polysomnography (PSG) for sleep assessment. Methods In all, 12 participants were recruited and their overnight sleep was ... -
Polysomnographic comparison of sleep in children with obesity and normal weight without suspected sleep-related breathing disorder
Danielsen, Yngvild Sørebø; Skjåkødegård, Hanna Flækøy; Bjorvatn, Bjørn; Juliusson, Pétur Benedikt; Pallesen, Ståle (Journal article; Peer reviewed, 2022)Short sleep and obstructive apneas/hypopneas have been shown to be associated with childhood obesity. Still, few studies have compared sleep in children with obesity, without suspected sleep disordered breathing and normal ... -
Poor Sleep in Patients with Multiple Sclerosis
Lunde, Hanne Marie Bøe; Aae, Tommy F.; Indrevåg, William; Aarseth, Jan Harald; Bjorvatn, Bjørn; Myhr, Kjell-Morten; Bø, Lars (Peer reviewed; Journal article, 2012-11-14)Background: Poor sleep is a frequent symptom in patients with multiple sclerosis (MS). Sleep may be influenced by MS-related symptoms and adverse effects from immunotherapy and symptomatic medications. We aimed to study ... -
Predictors and correlates of lifetime and persistent non-suicidal self-injury and suicide attempts among adult survivors of childhood sexual abuse
Steine, Iris Mulders; Nielsen, Brittany; Porter, Patricia A.; Krystal, John H.; Winje, Dagfinn; Grønli, Janne; Milde, Anne Marita; Bjorvatn, Bjørn; Nordhus, Inger Hilde; Pallesen, Ståle (Journal article; Peer reviewed, 2020)Background: Childhood sexual abuse (CSA) is a well-established risk factor for non-suicidal self-injury (NSSI) and suicide attempts (SA); still few studies have examined predictors of individual differences in NSSI/SA ... -
Prevalence and clinical correlates of insomnia in adults with attention-deficit hyperactivity disorder
Brevik, Erlend Joramo; Lundervold, Astri; Halmøy, Anne; Posserud, Maj-Britt Rocio; Instanes, Johanne Telnes; Bjorvatn, Bjørn; Haavik, Jan (Peer reviewed; Journal article, 2017-08)Objective: To investigate the prevalence of insomnia in adults with Attention-deficit hyperactivity disorder (ADHD) and its association with clinical subtypes, current ADHD symptoms, and stimulant treatment. Method: We ... -
Prevalence of insomnia and hypnotic use in Norwegian patients visiting their general practitioner
Torsvik, Sunniva; Bjorvatn, Bjørn; Eliassen, Knut Eirik Ringheim; Forthun, Ingeborg (Journal article; Peer reviewed, 2022)Background Sleep problems are common in the general population, but there are few studies on the prevalence of sleep problems and hypnotic use among patients in general practice. Objectives To estimate the prevalence ... -
The Prevalence of Insomnia Subtypes in Relation to Demographic Characteristics, Anxiety, Depression, Alcohol Consumption and Use of Hypnotics
Bjorøy, Ingrid; Jørgensen, Vilde Aanesland; Pallesen, Ståle; Bjorvatn, Bjørn (Journal article; Peer reviewed, 2020)Objective: The aim of the present study was to examine the prevalence of insomnia subtypes in relation to several demographic characteristics, as well as to investigate the prevalence of possible anxiety and depression, ... -
Prevalence of parasomnias in patients with obstructive sleep apnea. A registry-based cross-sectional study
Lundetræ, Ragnhild S.; Saxvig, Ingvild W.; Pallesen, Ståle; Aurlien, Harald; Lehmann, Sverre; Bjorvatn, Bjørn (Peer reviewed; Journal article, 2018-07-05)Objective: To assess the prevalence of parasomnias in relation to presence and severity of obstructive sleep apnea (OSA). We hypothesized higher parasomnia prevalence with higher OSA severity. Methods: The sample comprised ... -
Prevalence of several somatic diseases depends on the presence and severity of obstructive sleep apnea
Tveit, Ragnhild L.; Lehmann, Sverre; Bjorvatn, Bjørn (Peer reviewed; Journal article, 2018-02-23)Study objectives: The objective was to investigate the prevalence of heart attack, angina pectoris, stroke, hypertension, diabetes mellitus, chronic obstructive pulmonary disease, asthma and obesity in relation to the ... -
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 ... -
Protocol for a systematic review and meta-analysis on the associations between shift work and sickness absence
Sunde, Erlend; Harris, Anette Kristoffersen; Nielsen, Morten Birkeland; Bjorvatn, Bjørn; Lie, Stein Atle; Holmelid, Øystein; Vedaa, Øystein; Waage, Siri; Pallesen, Ståle (Journal article; Peer reviewed, 2022)Background Shift work, i.e., non-standard work hours, has been associated with both short- and long-term sickness absence. However, findings are inconsistent and inconclusive. Thus far, no comprehensive meta-analytic ... -
Psychosocial Challenges Related to Delayed Sleep Phase Disorder
Wilhelmsen-Langeland, Ane; Dundas, Ingrid; Saxvig, Ingvild West; Pallesen, Ståle; Nordhus, Inger Hilde; Bjorvatn, Bjørn (Journal article, 2012)Delayed sleep phase disorder (DSPD) is a disorder where the circadian rhythm is delayed according to the conventional norms, often resulting in school- and work related difficulties as well as emotional challenges. Research ... -
A randomized controlled trial with bright light and melatonin for treatment of delayed sleep phase disorder. Effects on subjective and objective sleepiness and cognitive function.
Wilhelmsen-Langeland, Ane; Saxvig, Ingvild West; Pallesen, Ståle; Nordhus, Inger Hilde; Vedaa, Øystein; Lundervold, Astri Johansen; Bjorvatn, Bjørn (Peer reviewed; Journal article, 2013-10)Delayed sleep phase disorder (DSPD) is a circadian rhythm sleep disorder. Patients with DSPD have problems initiating sleep if they go to bed at a conventional time and they often have problems waking at desired times. If ... -
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 ... -
Self-reported short and long sleep duration, sleep debt and insomnia are associated with several types of infections: Results from the Norwegian practice-based research network in general practice – PraksisNett
Bjorvatn, Bjørn; Rørtveit, Guri; Rebnord, Ingrid Keilegavlen; Waage, Siri; Emberland, Knut Erik; Forthun, Ingeborg (Journal article; Peer reviewed, 2023)Objective The objective was to assess the association between self-reported infections and sleep duration, sleep debt, chronic insomnia, and insomnia severity. Methods In total, 1023 participants were recruited from ... -
Self-reported sleeplessness in 12,655 persons living in the north of Norway: The Tromsø Study.
Fetveit, Arne; Straand, Jørund; Bjorvatn, Bjørn; Kristoffersen, Espen Saxhaug (Peer reviewed; Journal article, 2019)Sleep disturbances cause great impairment in quality of life. In this cross-sectional study, we analysed questionnaire-collected data from 12,655 persons (30-87 years) who participated in the sixth survey of the Tromsø ... -
A shift to something better? A longitudinal study of work schedule and prescribed sleep medication use in nurses
Forthun, Ingeborg; Waage, Siri; Pallesen, Ståle; Moen, Bente Elisabeth; Bjorvatn, Bjørn (Journal article; Peer reviewed, 2022)Objectives To explore whether a change in work schedule was associated with a change in the probability of prescribed sleep medication use. Methods A longitudinal study with annual questionnaire data (2008/2009–2021, ... -
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. ...