Blar i Bergen Open Research Archive på forfatter "Stormark, Kjell Morten"
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Alcohol and drug use among adolescents: and the co-occurrence of mental health problems. Ung@hordaland, a population-based study
Skogen, Jens Christoffer; Sivertsen, Børge; Lundervold, Astri; Stormark, Kjell Morten; Jakobsen, Reidar; Hysing, Mari (Peer reviewed; Journal article, 2014-09-22)Objectives The use of alcohol and drugs is prevalent among adolescents, but too little is known about the association between debut of alcohol and drug use, problematic use and concurrent mental health. The aim of the study ... -
The association between sleep problems and academic performance in primary school-aged children: Findings from a Norwegian longitudinal population-based study
Stormark, Kjell Morten; Fosse, Hedvik Elisabeth; Pallesen, Ståle; Hysing, Mari (Peer reviewed; Journal article, 2019-11-07)The purpose of this study was to examine the longitudinal association between concurrent, transitory and persistent difficulties initiating and maintaining sleep (DIMS) on academic performance in children in a. longitudinal ... -
The association between symptoms of depression and school absence in a population-based study of late adolescents
Askeland, Kristin Gärtner; Bøe, Tormod; Lundervold, Astri J.; Stormark, Kjell Morten; Hysing, Mari (Journal article; Peer reviewed, 2020)Objective: School attendance is an important functional marker in adolescence, and knowledge of the correlates of school absence is important to inform preventive efforts. The main aim of the present study was to investigate ... -
Complex families and health complaints among adolescents: A population-based cross-sectional study
Nilsen, Sondre Aasen; Hysing, Mari; Breivik, Kyrre; Heradstveit, Ove; Sunde, Eilif Vingen; Stormark, Kjell Morten; Bøe, Tormod (Peer reviewed; Journal article, 2019)Aims: The structure of adolescents’ families has become more complex over the last decades in several western countries. In parallel, health complaints among adolescents appear to have risen in the Nordic countries. This ... -
Delayed sleep phase syndrome in adolescents: prevalence and correlates in a large population based study
Sivertsen, Børge; Pallesen, Ståle; Stormark, Kjell Morten; Bøe, Tormod; Lundervold, Astri Johansen; Hysing, Mari (Peer reviewed; Journal article, 2013-12-11)Background: The aims of this study were to estimate the prevalence of Delayed Sleep Phase Syndrome (DSPS) in adolescence, and to examine the association to insomnia and school non-attendance. Methods: Data stem from a large ... -
Early postpartum discharge: maternal depression, breastfeeding habits and different follow-up strategies
Verpe, Hege; Kjellevold, Marian; Moe, Vibeke; Smith, Lars; Vannebo, Unni Tranaas; Stormark, Kjell Morten; Søvik, Margaret Ljosnes; Skotheim, Siv (Peer reviewed; Journal article, 2019-03)Background: In most maternity wards in Norway, early discharge (<48h) is the norm. To monitor newborns’ and women’s health during the first week after delivery, most maternity wards offer early check-ups, ... -
The effects of fatty fish intake on adolescents' nutritional status and associations with attention performance: Results from the FINS-TEENS randomized controlled trial
Handeland, Katina Dingtorp; Skotheim, Siv; Baste, Valborg; Graff, Ingvild Eide; Frøyland, Livar; Lie, Øyvind; Kjellevold, Marian; Wik, Maria; Stormark, Kjell Morten; Øyen, Jannike; Dahl, Lisbeth (Peer reviewed; Journal article, 2018-02-23)Background: Adolescence involves changes in dietary habits that may induce imbalances in the intake of different nutrients. Fish is an important dietary source of omega-3 (n-3) long-chain polyunsaturated fatty acids ... -
Fatty fish intake and cognitive function: FINS-KIDS, a randomized controlled trial in preschool children
Øyen, Jannike; Kvestad, Ingrid; Midtbø, Lisa Kolden; Graff, Ingvild Eide; Hysing, Mari; Stormark, Kjell Morten; Wik, Maria; Baste, Valborg; Frøyland, Livar; Koletzko, Berthold; Demmelmair, Hans; Dahl, Lisbeth; Lie, Øyvind; Kjellevold, Marian (Peer reviewed; Journal article, 2018-03-12)Background: Marine resources including fatty fish are important sources of n-3 long chain polyunsaturated fatty acids (n-3 LC-PUFAs), which are important for brain development. To our knowledge, this is the first randomized ... -
Fatty Fish Intake and the Effect on Mental Health and Sleep in Preschool Children in FINS-KIDS, a Randomized Controlled Trial
Hysing, Mari; Kvestad, Ingrid; Kjellevold, Marian; Midtbø, Lisa Kolden; Graff, Ingvild Eide; Lie, Øyvind; Hurum, Hallvard Moen; Stormark, Kjell Morten; Øyen, Jannike (Peer reviewed; Journal article, 2018-10-11)Mental health and sleep problems are prevalent in children during preschool years. The aim of the current study was to investigate if increased intake of fatty fish compared with meat improves mental health and sleep in ... -
Maternal DHA status during pregnancy has a positive impact on infant problem solving: A Norwegian prospective observation study
Braarud, Hanne Cecilie; Wik, Maria; Skotheim, Siv; Stormark, Kjell Morten; Frøyland, Livar; Graff, Ingvild Eide; Kjellevold, Marian (Peer reviewed; Journal article, 2018-04-24)Docosahexaenoic acid (DHA, 22:6, n-3) is a long-chain polyunsaturated fatty acid necessary for normal brain growth and cognitive development. Seafood and dietary supplements are the primary dietary sources of DHA. This ... -
Past Year Cannabis Use Among Norwegian Adolescents: Time Trends Based on the Ungdata Surveys 2010–2019
Heradstveit, Ove; Nilsen, Sondre Aasen; Breivik, Kyrre; Bakken, Anders; Haug, Thomas; Stormark, Kjell Morten (Journal article; Peer reviewed, 2021)Aims: To describe trends in cannabis use from 2010 to 2019 among Norwegian adolescents and relate these to individual- and municipal-level variables. Design: Data from nationwide repeated cross-sectional surveys collected ... -
Perfectionism in Adolescence: Associations With Gender, Age, and Socioeconomic Status in a Norwegian Sample
Sand, Liv; Bøe, Tormod; Shafran, Roz; Stormark, Kjell Morten; Hysing, Mari (Journal article; Peer reviewed, 2021)Background: Perfectionism in adolescence has received increased attention, but few studies have examined this in non-clinical samples. This study investigated perfectionism among adolescents from the general population in ... -
Physical inactivity, non-participation in sports and socioeconomic status: a large population-based study among Norwegian adolescents
Heradstveit, Ove; Haugland, Siren; Hysing, Mari; Stormark, Kjell Morten; Sivertsen, Børge; Bøe, Tormod (Journal article; Peer reviewed, 2020)Background Physical activity in adolescence is found to promote both immediate and long-term health, as well as school- and work performance. Previous studies suggest that parental socioeconomic status (SES) may influence ... -
Prevalence of psychiatric disorders in Norwegian 10-14-year-olds: Results from a cross-sectional study
Bøe, Tormod; Heiervang, Einar Røshol; Stormark, Kjell Morten; Lundervold, Astri J.; Hysing, Mari (Journal article; Peer reviewed, 2021)Youth mental health problems is the leading cause of disability worldwide and a major public health concern. Prevalence rates are needed for planning preventive interventions and health care services. We here report Norwegian ... -
The relationship between perceived social support and PTSD symptoms after exposure to physical assault: An 8 years longitudinal study
Johansen, Venke A; Milde, Anne Marita; Nilsen, Roy Miodini; Breivik, Kyrre; Nordanger, Dag; Stormark, Kjell Morten; Weisæth, Lars (Journal article; Peer reviewed, 2020)Consequences of nondomestic violence are known to be multifaceted with high rates of emotional and psychological problems in addition to physical injuries, and victims report many trauma related symptoms. This study explore ... -
Sleep and use of electronic devices in adolescence: Results from a large population-based study
Hysing, Mari; Pallesen, Ståle; Stormark, Kjell Morten; Jakobsen, Reidar; Lundervold, Astri; Sivertsen, Børge (Peer reviewed; Journal article, 2015-02-02)Objectives: Adolescents spend increasingly more time on electronic devices, and sleep deficiency rising in adolescents constitutes a major public health concern. The aim of the present study was to investigate daytime ... -
Sleep in adolescence: Considering family structure and family complexity
Nilsen, Sondre Aasen; Bergström, Malin; Sivertsen, Børge; Stormark, Kjell Morten; Hysing, Mari (Journal article; Peer reviewed, 2022)Objectives To investigate associations between family structure, family complexity, and sleep in adolescence. Background Family structure may be associated with sleep patterns and sleep problems among adolescents. ... -
Subjective economic status in adolescence: determinantsand associations with mental health in the Norwegian Youth@Hordaland Study
Bøe, Tormod; Dearing, Eric; Stormark, Kjell Morten; Zachrisson, Henrik Daae (Peer reviewed; Journal article, 2017)We aimed to identify factors associated with perceived economic well-being (PEWB), and examine its association with symptoms of depression and attention-deficit/hyperactivity disorder. In the Norwegian youth@hordaland ... -
Time in bed, sleep sufficiency and emotional and behavioral problems in a general population of 10-12 year old children
Fosse, Hedvik Elisabeth; Pallesen, Ståle; Hysing, Mari; Stormark, Kjell Morten (Peer reviewed; Journal article, 2011-10)Objective: To examine the relationship between time in bed, sleep sufficiency and emotional and behavioral problems in a general population of children aged 10-12 years (N=5095). Methods: Emotional and behavioral problems ... -
Weekday time in bed and obesity risk in adolescence
Danielsen, Yngvild Sørebø; Pallesen, Ståle; Sivertsen, Børge; Stormark, Kjell Morten; Hysing, Mari (Journal article; Peer reviewed, 2020-09-11)Introduction Sleep curtailment is associated with obesity in children, but few studies have investigated this relationship in a longitudinal sample of adolescents. The aim of the present study was to examine the longitudinal ...