Browsing NTNU Open by Author "Kjørstad, Kaia"
Now showing items 1-9 of 9
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A pragmatic effectiveness randomized controlled trial of the duration of psychiatric hospitalization in a trans- diagnostic sample of patients with acute mental illness admitted to a ward with either blue-depleted evening lighting or normal lighting conditions
Scott, Janine Linda; Langsrud, Knut; Vethe, Daniel; Kjørstad, Kaia; Vestergaard, Cecilie Lund; Faaland, Patrick; Lydersen, Stian; Vaaler, Arne; Morken, Gunnar; Torgersen, Terje; Kallestad, Håvard (Journal article; Peer reviewed, 2019)Background There is increasing recognition of the need to stabilize sleep-wake cycles in individuals with major mental disorders. As such, clinicians and researchers advocate the use of interventions targeted at sleep and ... -
Circadian preference in young adults: Associations with sleep and mental health outcomes from a national survey of Norwegian university students
Kjørstad, Kaia; Vedaa, Øystein; Pallesen, Ståle; Saxvig, Ingvild W.; Hysing, Mari; Sivertsen, Børge (Journal article; Peer reviewed, 2022) -
Digital cognitive behaviour therapy for insomnia (dCBT-I): Chronotype moderation on intervention outcomes
Faaland, Patrick; Vedaa, Øystein; Langsrud, Knut; Sivertsen, Børge; Lydersen, Stian; Vestergaard, Cecilie Lund; Kjørstad, Kaia; Vethe, Daniel; Ritterband, Lee M.; Harvey, Allison G.; Stiles, Tore C; Scott, Janine Linda; Kallestad, Håvard (Peer reviewed; Journal article, 2022)Using data from 1721 participants in a community-based randomized control trial of digital cognitive behavioural therapy for insomnia compared with patient education, we employed linear mixed modelling analyses to examine ... -
Dysfunctional beliefs and attitudes about sleep (DBAS) mediate outcomes in dCBT-I on psychological distress, fatigue, and insomnia severity
Faaland, Patrick; Vedaa, Øystein; Langsrud, Knut; Sivertsen, Børge; Lydersen, Stian; Saksvik, Simen Berg; Vestergaard, Cecilie Lund; Kjørstad, Kaia; Vethe, Daniel; Ritterband, Lee M.; Harvey, Allison G.; Stiles, Tore Charles; Scott, Janine Linda; Kallestad, Håvard (Peer reviewed; Journal article, 2023)Objective/background Digital cognitive behavioral therapy for insomnia (dCBT-I) improves several sleep and health outcomes in individuals with insomnia. This study investigates whether changes in Dysfunctional Beliefs 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 ... -
The effects of digital CBT-I on work productivity and activity levels and the mediational role of insomnia symptoms: Data from a randomized controlled trial with 6-month follow-up
Kjørstad, Kaia; Sivertsen, Børge; Vedaa, Øystein; Langsrud, Knut; Vethe, Daniel; Faaland, Patrick; Vestergaard, Cecilie; Lydersen, Stian; Smith, Otto Robert Frans; Scott, Janine Linda; Kallestad, Håvard (Peer reviewed; Journal article, 2022)Abstract Study objectives Cognitive behavioral therapy for insomnia (CBT-I) is a well-established treatment for insomnia, but few studies have explored its impact on work and activity impairment. Methods Data stem from ... -
Evening light environments can be designed to consolidate and increase the duration of REM-sleep
Vethe, Daniel; Drews, Henning Johannes; Scott, Janine Linda; Engstrøm, Morten; Heglum, Hanne Siri Amdahl; Grønli, Janne; Wisor, J.P.; Sand, Trond; Lydersen, Stian; Kjørstad, Kaia; Faaland, Patrick; Vestergaard, Cecilie Lund; Langsrud, Knut; Kallestad, Håvard (Peer reviewed; Journal article, 2022)Evening exposure to short-wavelength light has disruptive effects on circadian rhythms and sleep. These effects can be mitigated by blocking short-wavelength (blue) frequencies, which has led to the development of evening ... -
Interventions to Improve Sleep and Their Impact on Work and Daytime Impairment
Kjørstad, Kaia (Doctoral theses at NTNU;2022:233, Doctoral thesis, 2022) -
Sleep and work functioning in nurses undertaking inpatient shifts in a blue-depleted light environment
Kjørstad, Kaia; Faaland, Patrick; Sivertsen, Børge; Kallestad, Håvard; Langsrud, Knut; Vethe, Daniel; Vestergaard, Cecilie Lund; Harris, Anette Kristoffersen; Pallesen, Ståle; Scott, Jan; Vedaa, Øystein (Peer reviewed; Journal article, 2022)Background Blue-depleted light environments (BDLEs) may result in beneficial health outcomes for hospital inpatients in some cases. However, less is known about the effects on hospital staff working shifts. This study ...