Browsing NTNU Open by Author "Lydersen, Stian"
Now showing items 1-20 of 168
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A 12-month follow-up of a transdiagnostic indicated prevention of internalizing symptoms in school-aged children: The results from the EMOTION study.
Løvaas, Mona Elisabeth S; Lydersen, Stian; Sund, Anne Mari; Neumer, Simon-Peter; Martinsen, Kristin Dagmar; Holen, Solveig; Patras, Joshua; Rasmussen, Lene-Mari Potulski; Adolfsen, Frode; Reinfjell, Trude (Peer reviewed; Journal article, 2020)Background Anxious and depressive symptoms in youth are highly prevalent, are often comorbid and have a high rate of relapse. Preventive interventions are promising, but follow-up results are lacking. The transdiagnostic ... -
A conservative weight loss intervention relieves bowel symptoms in morbidly obese subjects with irritable bowel syndrome: a prospective cohort study
Aasbrenn, Martin; Lydersen, Stian; Farup, Per Grønaas (Journal article; Peer reviewed, 2018)Background. Irritable bowel syndrome (IBS) is common in subjects with morbid obesity; the effect of weight loss programs on bowel symptoms is largely unknown. Methods. This prospective cohort study explored bowel symptoms, ... -
A longitudinal study of associations between psychiatric symptoms and disorders and cerebral gray matter volumes in adolescents born very preterm
Lozano-Botellero, Violeta Nazaret; Skranes, Jon Sverre; Bjuland, Knut Jørgen; Håberg, Asta; Lydersen, Stian; Brubakk, Ann-Mari; Indredavik, Marit Sæbø; Martinussen, Marit (Journal article; Peer reviewed, 2017)Background:Being born preterm with very low birthweight (VLBW≤1500 g) poses a risk for cortical andsubcortical gray matter (GM) abnormalities, as well as for having more psychiatric problems during childhood andadolescence ... -
A physical activity intervention to prevent cognitive decline after stroke – Secondary results from the LAST (Life After Stroke) study. An 18-month randomised controlled trial.
Ihle-Hansen, Hege; Langhammer, Birgitta; Lydersen, Stian; Gunnes, Mari; Indredavik, Bent; Askim, Torunn (Journal article; Peer reviewed, 2019)Objective: To examine the effects of individualized regular coaching and exercise on post-stroke cognitive and emotional function. Methods: The Life After STroke (LAST) study investigated the differences between intervention ... -
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 ... -
A reliability study of the rapid emergency triage and treatment system for children
Henning, Brita; Lydersen, Stian; Døllner, Henrik (Journal article; Peer reviewed, 2016-02-24)Background To evaluate inter- and intrarater reliability of a new Scandinavian triage system for children, the Rapid Emergency Triage and Treatment System-pediatric (RETTS-p). Methods Two observational studies ... -
ABCD3-I and ABCD2 Scores in a TIA Population with Low Stroke Risk
Ildstad, Fredrik; Ellekjær, Hanne; Wethal, Torgeir; Lydersen, Stian; Fjærtoft, Hild; Indredavik, Bent (Peer reviewed; Journal article, 2021)Objectives. We aimed to evaluate the ABCD3-I score and compare it with the ABCD2 score in short- (1 week) and long-term (3 months; 1 year) stroke risk prediction in our post-TIA stroke risk study, MIDNOR TIA. Materials and ... -
Absent exercise-induced improvements in fat oxidation in women with polycystic ovary syndrome after high-intensity interval training
Lionett, Sofie Buurgaard; Kiel, Ida Almenning; Røsbjørgen, Ragnhild; Lydersen, Stian; Larsen, Steen; Moholdt, Trine (Peer reviewed; Journal article, 2021)Background: Polycystic ovary syndrome (PCOS) and metabolic inflexibility are linked to insulin resistance, and women with PCOS appear to be metabolic inflexible in the rested, insulin-stimulated state. Exercise training ... -
Acceptability and feasibility of enhanced cognitive behavioral therapy (eCBT) for children and adolescents with obsessive–compulsive disorder
Babiano-Espinosa, Lucia; Wolters, Lidewij H.; Weidle, Bernhard; Compton, Scott; Lydersen, Stian; Skokauskas, Norbert (Peer reviewed; Journal article, 2021)Introduction Obsessive–compulsive disorder (OCD) is a disabling mental health disorder affecting 1–3% of children and adolescents. Cognitive behavioral therapy (CBT) is recommended as the first-line treatment, but is limited ... -
Adherence to a Long-Term Physical Activity and Exercise Program After Stroke Applied in a Randomized Controlled Trial
Gunnes, Mari; Langhammer, Birgitta; Aamot, Inger Lise; Lydersen, Stian; Ihle-Hansen, Hege; Indredavik, Bent; Reneflot, Kristine Helen; Schroeter, Walburga; Askim, Torunn (Journal article; Peer reviewed, 2018)Background Persistent physical activity is important to maintain motor function across all stages after stroke. Objective The objective of this study was to investigate adherence to an 18-month physical activity and ... -
Age of First Walking and Associations with Symptom Severity in Children with Suspected or Diagnosed Autism Spectrum Disorder
Reindal, Lise; Nærland, Terje; Lydersen, Stian; Weidle, Bernhard; Andreassen, Ole Andreas; Sund, Anne Mari (Peer reviewed; Journal article, 2020)Age of first walking (AOW) is reported to be later in autism spectrum disorder (ASD) compared with typical development. However, the relationship between AOW and variations in ASD symptoms across different neurodevelopmental ... -
Age of First Walking and Associations with Symptom Severity in Children with Suspected or Diagnosed Autism Spectrum Disorder
Reindal, Lise; Nærland, Terje; Weidle, Bernhard; Lydersen, Stian; Andreassen, Ole Andreas; Sund, Anne Mari (Journal article; Peer reviewed, 2019)Age of first walking (AOW) is reported to be later in autism spectrum disorder (ASD) compared with typical development. However, the relationship between AOW and variations in ASD symptoms across different neurodevelopmental ... -
Alternativer til Fishers eksakte test
Lydersen, Stian; Fagerland, Morten; Laake, Petter (Peer reviewed; Journal article, 2019)Dersom man vil undersøke om det er en sammenheng mellom to variabler i en krysstabell, kan Pearsons khikvadrattest brukes for store utvalg (1), mens Fishers eksakte test er det tradisjonelle alternativet for små utvalg ... -
Amongst Norwegian paediatricians there is little agreement in management of cases of suspected child maltreatment
Vollmer-Sandholm, Mary Jo; Myhre, Arne Kristian; Otterman, Gabriel; Lydersen, Stian; Stray-Pedersen, Arne (Peer reviewed; Journal article, 2021)Aim Child maltreatment is not unusual in our society but little is known about the medical management of cases in the Nordic countries. This study investigated physician knowledge and practice in cases of suspected physical ... -
Analysis of Longitudinal Data with Missing Values.: Methods and Applications in Medical Statistics.
Dragset, Ingrid Garli (Master thesis, 2009)Missing data is a concept used to describe the values that are, for some reason, not observed in datasets. Most standard analysis methods are not feasible for datasets with missing values. The methods handling missing data ... -
APOE ε4 lowers age at onset and is a high risk factor for Alzheimer's disease; a case control study from central Norway
Sando, Sigrid Botne; Melquist, Stacey; Cannon, Ashley; Hutton, Michael; Sletvold, Olav; Saltvedt, Ingvild; White, Linda; Lydersen, Stian; Aasly, Jan (Journal article; Peer reviewed, 2008)Background: The objective of this study was to analyze factors influencing the risk and timing of Alzheimer's disease (AD) in central Norway. The APOE ε4 allele is the only consistently identified risk factor for late ... -
Are Nonnutritive Sweeteners Obesogenic? Associations between Diet, Faecal Microbiota, and Short-Chain Fatty Acids in Morbidly Obese Subjects
Farup, Per Grønaas; Lydersen, Stian; Valeur, Jørgen (Journal article; Peer reviewed, 2019)Obesity has been associated with changes in the gut microbiota and its metabolites. The study explored changes in the faecal microbiota and short-chain fatty acids (SCFA) associated with the diet (including nonnutritive ... -
Assessment of mirror movements in children and adolescents with unilateral cerebral palsy: reliability of the Woods and Teuber scale
Magne, Victoria; Adde, Lars; Hoare, Brian; Klingels, Katrijn; Simon-Martinez, Cristina; Mailleux, Lisa; Lydersen, Stian; Elvrum, Ann-Kristin Gunnes (Peer reviewed; Journal article, 2021)Aim To investigate the inter‐ and intrarater reliability of the Woods and Teuber scale to detect mirror movements in children and adolescents with unilateral cerebral palsy (CP). Method A convenience sample of children and ... -
Assiciation between in-hospital frailty and health related quality of life three months after stroke: the Nor-COAST study
Wæhler, Idunn Snorresdatter; Saltvedt, Ingvild; Lydersen, Stian; Fure, Brynjar; Askim, Torunn; Einstad, Marte Stine; Thingstad, Pernille (Peer reviewed; Journal article, 2021)Background Stroke survivors are known to have poorer health-related quality of life (HRQoL) than the general population, but less is known about characteristics associated with HRQoL decreasing through time following a ... -
Association between Personal Activity Intelligence (PAI) and body weight in a population free from cardiovascular disease - The HUNT study
Kieffer, Sophie Kvalheim; Nauman, Javaid; Syverud, Kari; Selboskar, Hege; Lydersen, Stian; Ekelund, Ulf; Wisløff, Ulrik (Peer reviewed; Journal article, 2021)Background: Personal Activity Intelligence (PAI) is a new metric for physical activity tracking, and is associated with reduced risk of all-cause and cardiovascular mortality. We prospectively investigated whether PAI is ...