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Ystrøm, Eivind
(2023).
Gener og prestasjon.
[Radio].
NRK Dagsnytt 18.
Show summary
Forsker mener betydningen av gener må vurderes bedre etter at ny studie viser at barn av foreldre med høy utdanning drar i fra de andre på skolen.
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Bright, Joanna K.; Ahmadzadeh, Yasmin; Viding, O.; Ystrøm, Eivind & McAdams, Thomas Andrew
(2023).
A genetically informed investigation into the bidirectional links between parenting style and child externalizing behaviours.
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Maes, Hermine H.; Eftedal, Nikolai Haahjem; Eilertsen, Espen Moen & Ystrøm, Eivind
(2023).
Children of relatives and parents of twins modelling of BMI and Education in MOBA.
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Maes, Hermine H.; Eftedal, Nikolai Haahjem; Eilertsen, Espen Moen & Ystrøm, Eivind
(2023).
Children of relatives and parents of twins modelling of BMI in MOBA.
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Bright, Joanna K.; Ahmadzadeh, Yasmin; Oginni, O.; Viding, Essi; Ystrøm, Eivind & McAdams, Tom A.
(2023).
A genetically informed investigation into the bidirectional links between parenting style and child externalizing behaviours.
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Cheesman, Rosa Catherine Gillespie; Ystrom, Eivind; Eilertsen, Espen Moen; Ayorech, Ziada & Ystrøm, Eivind
(2023).
The anatomy of educational fields.
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Ayorech, Ziada; Cheesman, Rosa Catherine Gillespie; Eilertsen, Espen Moen; Havdahl, Alexandra & Ystrøm, Eivind
(2023).
Family-based approaches to gene-environment interplay.
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Ayorech, Ziada; Cheesman, Rosa Catherine Gillespie; Eilertsen, Espen Moen; Havdahl, Alexandra & Ystrøm, Eivind
(2023).
The genetics of depression across the childbearing years.
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Cheesman, Rosa Catherine Gillespie; Ystrom, Eivind; Ayorech, Ziada; Eilertsen, Espen Moen; Ystrøm, Eivind & Ayorech, Ziada
(2023).
The Anatomy of Educational Fields.
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Ayorech, Ziada; Davies, Neil; Smith, George Davey; Watson, Hunna J; Yilmaz, Zeynep & Bulik, Cynthia M
[Show all 15 contributors for this article]
(2023).
Causal risk factors for childhood eating behaviours and adulthood anorexia nervosa. A between and within family Mendelian randomisation study.
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Ayorech, Ziada; Torvik, Fartein Ask; Cheesman, Rosa Catherine Gillespie; Eilertsen, Espen Moen; Valstad, Mathias & Bjørndal, Ludvig Daae
[Show all 9 contributors for this article]
(2023).
Leveraging family data can reveal the role of selection bias in genomic research.
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Sunde, Hans Fredrik; Eftedal, Nikolai Haahjem; Gillespie Cheesman, Rosa Catherine; Corfield, Elizabeth Claire; Kleppestø, Thomas Haarklau & Seierstad, Anne Caroline
[Show all 9 contributors for this article]
(2023).
Genetic similarity between relatives provides evidence on the presence and history of assortative mating.
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Sunde, Hans Fredrik; Eftedal, Nikolai Haahjem; Gillespie Cheesman, Rosa Catherine; Corfield, Elizabeth Claire; Kleppestø, Thomas Haarklau & Seierstad, Anne Caroline
[Show all 9 contributors for this article]
(2023).
Assortative mating strongly increases genetic similarity between distant relatives.
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Sunde, Hans Fredrik; Eftedal, Nikolai Haahjem; Gillespie Cheesman, Rosa Catherine; Corfield, Elizabeth Claire; Kleppestø, Thomas Haarklau & Seierstad, Anne Caroline
[Show all 9 contributors for this article]
(2023).
Assortative mating increases genetic similarity among distant relatives: evidence from polygenic scores.
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Røysamb, Espen; Moffitt, Terrie; Caspi, Avshalom; Ystrøm, Eivind & Nes, Ragnhild Bang
(2023).
Worldwide wellbeing: Simulated twins reveal (missing) shared environments.
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Røysamb, Espen; Ystrøm, Eivind & Nes, Ragnhild Bang
(2023).
Wellbeing worldwide: Identifying the (missing) shared environment.
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Ystrøm, Eivind
(2023).
Getting within the between – gene-environment correlations and children without parents.
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Ystrøm, Eivind
(2023).
Schools in the interplay between genetic risk for high BMI and academic performance.
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Qin, Qi; Cheesman, Rosa Catherine Gillespie; Eilertsen, Espen Moen; Ebeltoft, Joakim Coleman; Ayorech, Ziada & Ystrøm, Eivind
(2023).
School and geographical differences in the effect of heritable emotional and behavioural traits on educational performance.
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Qin, Qi; Cheesman, Rosa Catherine Gillespie; Eilertsen, Espen Moen; Ebeltoft, Joakim Coleman; Ayorech, Ziada & Ystrøm, Eivind
(2023).
School and geographical differences in the effect of heritable emotional and behavioral traits on educational performance.
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Liu, Chaoyu; Ahmadzadeh, Yasmin I.; Baldwin, Jessie R.; Hannigan, Laurie John; Ystrøm, Eivind & McAdams, Tom A.
(2023).
Examining mechanisms underlying associations between exposure to antenatal maternal stressful life events and child mental health outcomes.
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Maes, Hermine H.; Eftedal, Nikolai Haahjem; Eilertsen, Espen Moen & Ystrøm, Eivind
(2023).
Children of Relatives and Parents of Twins Modeling of BMI and Education in MoBa.
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Eftedal, Nikolai Haahjem; Eilertsen, Espen Moen; Sunde, Hans Fredrik; Kleppestø, Thomas Haarklau; Ystrøm, Eivind & Czajkowski, Nikolai Olavi
(2023).
Correlations on Norwegian national standardized tests between millions of pairs of relatives: Exploring the impacts of assortative mating and parental effects.
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Ahmadzadeh, Yasmin I.; Eilertsen, Espen Moen; Cheesman, Rosa Catherine Gillespie; Ystrøm, Eivind & McAdams, Tom A.
(2023).
Are mothers’ prenatal emotional symptoms influenced by the foetal genome? Exploring the possibility of child-to- parent effects during pregnancy.
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Røysamb, Espen; Kozlowski Mayerhofer, Lilian Juliane; Hansen, Thomas; Ystrøm, Eivind & Yu, Baeksan
(2023).
Maternal wellbeing and illbeing from pregnancy to school age: A longitudinal study of co-development and interrelations.
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Kozlowski Mayerhofer, Lilian Juliane; Nes, Ragnhild Bang; Yu, Baeksan; Ayorech, Ziada; Lan, Xiaoyu & Ystrøm, Eivind
[Show all 7 contributors for this article]
(2023).
From Romance to Motherhood: Transitions in Relationship Satisfaction, Wellbeing and Illbeing from Pregnancy to Toddlerhood.
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Kozlowski Mayerhofer, Lilian Juliane; Nes, Ragnhild Bang; Ayorech, Ziada; Bartels, Meike; Ystrøm, Eivind & Røysamb, Espen
(2023).
Early manifestations of genetic profile in mental health phenotypes and the role of maternal wellbeing: findings from MoBa and NTR.
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Eilertsen, Espen Moen; Eftedal, Nikolai Haahjem; Gillespie Cheesman, Rosa Catherine; Ebeltoft, Joakim Coleman; Sunde, Hans Fredrik & Tandberg, Anneli
[Show all 8 contributors for this article]
(2023).
Multivariate parental effects across the internalizing-externalizing spectrum in childhood: results from the Norwegian Mother, Father, and Child Cohort Study.
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Ebeltoft, Joakim Coleman; Eilertsen, Espen Moen; Cheesman, Rosa Catherine Gillespie; Ayorech, Ziada; Qin, Qi & Ystrøm, Eivind
(2023).
Inheritance of inequality: Comparing heritability estimates.
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Ebeltoft, Joakim Coleman; Eilertsen, Espen Moen; Cheesman, Rosa Catherine Gillespie; Ayorech, Ziada; Qin, Qi & Ystrøm, Eivind
(2023).
Inheritance of inequality.
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Askelund, Adrian Dahl; Hegemann, Laura; Corfield, Elizabeth Claire; Ystrøm, Eivind; Ask, Helga & Havdahl, Alexandra
[Show all 7 contributors for this article]
(2023).
Genetic and environmental factors associated with differentiation between behavioural and emotional problems across early life.
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Ebeltoft, Joakim Coleman; Eilertsen, Espen Moen; Cheesman, Rosa Catherine Gillespie; Ayorech, Ziada; Qin, Qi & Ystrøm, Eivind
(2023).
The inheritance of inequality:
Comparing heritability estimates of socioeconomic status.
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Lund, Ingunn Olea; Hannigan, Laurie; Ask, Helga; Askelund, Jo Adrian Dahl; Hegemann, Laura & Corfield, Elizabeth Claire
[Show all 11 contributors for this article]
(2023).
PRENATAL MATERNAL STRESS: TRIANGULATING EVIDENCE FOR INTRAUTERINE EXPOSURE EFFECTS ON BIRTH AND EARLY CHILDHOOD OUTCOMES ACROSS MULTIPLE APPROACHES.
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Lund, Ingunn Olea; Hannigan, Laurie; Ask, Helga; Askelund, Jo Adrian Dahl; Hegemann, Laura & Corfield, Elizabeth Claire
[Show all 11 contributors for this article]
(2023).
Prenatal maternal stress: triangulating evidence for intrauterine exposure effects on birth and early childhood outcomes across multiple approaches.
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Torvik, Fartein Ask; Sunde, Hans Fredrik; Gillespie Cheesman, Rosa Catherine; Eftedal, Nikolai Haahjem; Ystrøm, Eivind & Eilertsen, Espen Moen
(2023).
Within- and cross-trait assortative mating for educational attainment and mental and somatic health conditions: a total population study.
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Ahmadzadeh, Yasmin & Ystrøm, Eivind
(2022).
Mental health in families: one genomic and one qualitative study.
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Ayorech, Ziada; Cheesman, Rosa Catherine Gillespie; Eilertsen, Espen Moen; Torvik, Fartein Ask; Andreassen, Ole & Havdahl, Alexandra Karoline Saasen
[Show all 7 contributors for this article]
(2022).
The genetics of depression across the childbearing years.
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Ahmadzadeh, Yasmin; Eilertsen, Espen Moen; Wechsler, Daniel; Cheesman, Rosa Catherine Gillespie; Ayorech, Ziada & Rayner, Cristopher
[Show all 8 contributors for this article]
(2022).
Are mothers' prenatal emotional symptoms influenced by the foetal genome? Exploring the possibility of child-to-parent effects during pregnancy.
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Demange, Perline; Eilertsen, Espen Moen; Nordmo, Magnus; Torvik, Fartein Ask; Lyngstad, Torkild Hovde & Nivard, Michel
[Show all 8 contributors for this article]
(2022).
Genetic and pedigree designs to investigate the effects of parental psychopathology on children's school performance.
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Eilertsen, Espen Moen; Cheesman, Rosa Catherine Gillespie; Ayorech, Ziada; Røysamb, Espen; Pingault, Jean-Baptiste & Njølstad, Pål Rasmus
[Show all 11 contributors for this article]
(2022).
A trio-gcta study of indirect and direct genetic effects on hyperactivity, inattention, conduct problems, and oppositional-defiant behaviors.
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Hannigan, Laurie John; Lund, Ingunn Olea; Askelund, Adrian Dahl; Ystrøm, Eivind; Corfield, Elizabeth Claire & Ask, Helga
[Show all 7 contributors for this article]
(2022).
Gene-environment interplay in associations between maternal at-risk drinking and early childhood emotional and behavioural development in the Norwegian Mother, Father, and Child Cohort.
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Ystrøm, Eivind & Reichborn-Kjennerud, Ted
(2022).
Genomics of borderline personality disorder: Common Genetic Factors for Personality Disorders, Common Mental Disorders, Substance Abuse, and Stressful Life Events: A population based longitudinal twin study.
Show summary
Objectives: To evaluate the contribution of genetic and environmental factors for stability in, comorbidity with, and life events related to personality disorders.
Methods: DSM-IV criteria for 10 personality disorders were assessed using structured interviews in 2801 Norwegian twins in early adulthood (age 28; range 19-36) and again in 2282 twins 10 years later. Biometric models were used on criteria counts to analyze the genetic and environmental factors for PDs and: 10-year stability, comorbidity with common mental disorders and psychotic-like experiences, substance abuse, and stressful life events.
Results: Heritability of PDs were estimated to be 40% to 20% heritable. The 10-year stability estimated as tetrachoric correlation of PDs ranged from .35 to .58. Genetic variants influencing PDs were estimated to be the same over 10 years, the environmental factors were estimated to change 74-84% over the same period. Genetic and environmental factors for comorbidity between PDs and common mental disorders have different dimensionality and structure. The link between PDs and substance use are dependent on the specific criteria endorsed rather than at the disorder level. Stressful life events are important for the development of PDs and substance use over and beyond what can be explained by life-course selection due to genetic risk.
Conclusion: Although PDs at specific assessments are mostly influenced by environmental factors, genetic factors are more important in explaining stability and comorbidity. The unequal structure of genetic and environmental factors leads to a mismatch between the observed comorbidity between PDs and mental disorders and the expected commonality in genetic factors. Aggregation of symptoms and disorders according to the estimated genetic structure could improve the precision of molecular genetic studies. This longitudinal twin study has also shown that PDs are related to stressful life events, mental disorders, and substance abuse over and beyond what can be explained by genetic risk.
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Fabian, Streit; Witt, Stephanie H.; Hindley, Guy Frederick Lanyon; Kuja-Halkola, Ralf & Ystrøm, Eivind
(2022).
Genomics of borderline personality disorder.
Show summary
Factors such as early trauma or abuse are well-established environmental risk factors for the development of Borderline Personality Disorder (BPD). Compared to other mental disorders, little attention has been paid to the contribution of genetic risk factors. The present symposium aims to give an overview of how family and twin studies, and molecular genetic studies can contribute to the understanding of the disorder, and its relationship to risk factors and comorbid disorders:
Eivind Ystrom will present on how twin studies can be used to investigate genetic and environmental risk factors contributing to comorbidity between BPD, mental disorders, and substance abuse. Using interview data from a population-based twin study, Ystrom and colleagues have found that genetic factors are the main contributors to the 10-year stability of BPD. Genetic factors for BPD are to a great extent overlapping with the risk for antisocial PD and substance use disorders. However, BPD is related to stressful life events, internalizing symptoms and personality disorders, and substance abuse over and beyond what can be explained by common genetic risk factors.
Ralf Kuja-Halkola will present how national health register data can be used to investigate genetic contributions. Using twins and siblings, familial aggregation of clinical BPD diagnosis was investigated, and the heritability of BPD was estimated to 46%. The familial co-aggregation between BPD and attention deficit hyperactivity disorder (ADHD) was estimated, e.g. full siblings of individuals with ADHD diagnosis have a 2.8 times increased risk of having a BPD diagnosis compared to full siblings of individuals without ADHD diagnosis. Additionally, the co-aggregation in full siblings between BPD and a range of psychiatric and somatic disorders, and behavioral traits will be presented.
Fabian Streit will present the initial results of the largest genome-wide association study (GWAS) which systematically investigates the contribution of common genetic variants to BPD. In a meta-analysis including over 6000 cases, and 500,000 controls. The results highlight first associated genes, also related to comorbid disorders, such as post-traumatic stress disorder (PTSD), or ADHD. Polygenic risk scores predicted up to 3% of the variance in case-control status. Positive genetic correlations were observed with other psychiatric disorders, most pronounced with PTSD, depression, ADHD, and anxiety. Additional analyses indicated genetic correlations with factors such as somatic disorders, pain, mood swings, childhood maltreatment, and material deprivation.
Guy Hindley will present molecular genetic investigations of mood instability, a key component of BPD. A recent GWAS identified a strong positive genetic correlation of the trait with depression but weak correlations with bipolar disorder and schizophrenia. However, genetic correlation does not capture shared genetic variants with mixed effect directions. By applying statistical tools which capture mixed effect directions, the extensive genetic overlap between mood instability and all three mental disorders could be demonstrated, irrespective of their genetic correlation. This overlap was used to identify 246 novel genetic loci associated with mood instability. Biological characterization highlighted a convergence on synaptic gene-sets. These findings indicate shared neurobiological mechanisms between mood instability and diverse mental disorders.
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Nygaard, Egil; Ystrøm, Eivind; Nes, Ragnhild Bang; Røysamb, Espen; Klomsten, Anne Torhild & Bjørnebekk, Gunnar
[Show all 8 contributors for this article]
(2022).
Effekt av det tverrfaglige temaet Folkehelse og livsmestring
.
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Bjørndal, Ludvig Daae; Eilertsen, Espen Moen; Baldwin, Jessie R.; Ayorech, Ziada; Cheesman, Rosa Catherine Gillespie & Ahmadzadeh, Yasmin
[Show all 13 contributors for this article]
(2022).
Disentangling intrafamilial effects on maternal depression using trio-GCTA.
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Kozlowski Mayerhofer, Lilian Juliane; Nes, Ragnhild Bang; Lan, Xiaoyu; Czajkowski, Nikolai Olavi; Ystrøm, Eivind & Røysamb, Espen
(2022).
Social support and wellbeing across the pre- and postnatal period in women victim of abuse: Findings from the Norwegian Mother, Father and Child Cohort Study.
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Askelund, Adrian Dahl; Hegemann, Laura; Corfield, Elizabeth Claire; Ask, Helga; Ystrøm, Eivind & Havdahl, Alexandra
[Show all 7 contributors for this article]
(2022).
The genomics of psychiatric symptom differentiation in early life.
Show summary
Background: An emerging body of evidence suggests that genetic risk for psychiatric conditions is diffuse, probabilistic in nature, and overlaps substantially across different domains. However, psychiatric conditions are diagnosed and treated as specific disorders based on differentiated symptom clusters. In the context of generalised genetic risk, it remains to be determined how distinct psychiatric conditions emerge.
The prospects of using genomic data to predict individual-level risk for psychiatric conditions are at present unclear. For prediction to be useful, it needs to be both sensitive (identifying who is at risk) and specific (at risk for what). While increasing sample sizes for genetic discovery may boost sensitivity, the generalised nature of genetic risk implies that identifying predictors of differentiation of psychiatric symptoms may be needed to increase specificity. The Norwegian Mother, Father, and Child Cohort Study (MoBa) is a large population-based pregnancy cohort with genotype and phenotype data, ideally suited to address these questions.
Methods: We used the Child Behavior Checklist to assess behavioural and emotional difficulties at ages 1.5, 3, and 5. Symptom¬ differentiation was operationalised as the relative level of these domains over time (behavioural difficulties – emotional difficulties = differentiation). This means that individuals with high scores have relatively more behavioural than emotional difficulties, and the inverse for low scores. These scores can be compared to overall difficulties (behavioural + emotional = total). Following a preregistered analysis plan, we estimated latent growth trajectories of differentiation across early childhood, as well as mediation effects of differentiation on symptoms of psychiatric conditions at age 8. We tested associations between 10 polygenic scores (PGS) for core neurodevelopmental and psychiatric conditions and the extent (intercept) and rate (slope) of the differentiation process. The analytic sample comprised 57,387 genotyped children (including 12,347 pairs of full siblings) from MoBa. We used multilevel structural equation models to account for unmeasured familial confounding, and corrected for multiple comparisons using FDR.
Results: ADHD PGS predicted the extent and rate of differentiation toward behavioural difficulties in early childhood (βintercept = 0.10 [0.09, 0.11]; βslope = 0.02 [0.02, 0.03]), and the extent of differentiation at age 5 in turn mediated 33-37% of the PGS associations with ADHD symptoms at age 8. The ADHD PGS association was smaller for total difficulties (βintercept = 0.05 [0.04, 0.06]; βslope = 0.01 [0.01, 0.02]). Schizophrenia PGS predicted differentiation toward emotional difficulties at age 5 (βintercept = -0.03 [-0.04, -0.02]; βslope = -0.01 [-0.02, -0.01]), and bipolar disorder PGS predicted differentiation toward behavioural difficulties (βintercept = 0.02 [0.01, 0.03]; βslope = 0.01 [0.01, 0.02]) – though in both cases effect sizes were substantially smaller.
Discussion: We identify genomic predictors of symptom differentiation in early life. Results support a direct effect of ADHD PGS on differentiation toward behavioural difficulties, independent of individuals’ total burden of symptoms. PGS for schizophrenia and bipolar disorder differentially associates with the development of emotional and behavioural difficulties in early childhood. This research may help refine risk predictions in child psychiatry, an important step to enable early prevention.
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Folstad, Siri Hausland; Edvoll, Maud; Røsand, Ingvild; Ystrøm, Eivind; Klomsten, Anne Torhild & Nes, Ragnhild Bang
[Show all 9 contributors for this article]
(2022).
Child Mental Health Effects of Large-Scale School Curricular Changes: A Systematic Review.
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Eilertsen, Espen Moen & Ystrøm, Eivind
(2022).
Multilevel models in genetics.
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Ystrøm, Eivind
(2022).
Bruk av data fra Statistisk sentralbyrå.
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Ystrøm, Eivind & Tesli, Martin Steen
(2022).
Personlighetstrekket som gir angst.
[Newspaper].
Dagbladet.
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Ystrøm, Eivind
(2022).
Er det egentlig bra for hjertet med litt alkohol?
[Newspaper].
Nettavisen.
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Middeldorp, Christel M.; Jami, Eshim; Sallis, Hannah; Ystrøm, Eivind; Pingault, Jean-Baptiste & Munafo, M
[Show all 7 contributors for this article]
(2021).
The Role of Genetic Nurturing Effects in Childhood Psychopathology.
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Kleppestø, Thomas Haarklau; Eilertsen, Espen Moen; van Bergen, Elsje; Zeitsch, Brendan; Sunde, Hans Fredrik & Nordmo, Magnus
[Show all 10 contributors for this article]
(2021).
Intergenerational Transmission of ADHD: More Evidence for Heritability than Fast Life History.
Behavior Genetics.
ISSN 0001-8244.
51(6),
p. 717–717.
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Kleppestø, Thomas Haarklau; Eilertsen, Espen Moen; van Bergen, Elsje; Zeitsch, Brendan; Sunde, Hans Fredrik & Nordmo, Magnus
[Show all 10 contributors for this article]
(2021).
Intergenerational Transmission of ADHD: More Evidence for Heritability than Fast Life History.
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Wechsler, Daniel L; Rijsdijk, Fruhling; Eilertsen, Espen Moen; Ystrøm, Eivind; Ahmadzadeh, Yasmin I. & Badini, Isabella
[Show all 8 contributors for this article]
(2021).
Do adult ADHD symptoms share genetic underpinnings with child ADHD symptoms and those of related comorbid childhood disorders? Comparing within-child and mother-child genetic correlations in a large Norwegian Children-of-Twins-and- Siblings cohort.
Behavior Genetics.
ISSN 0001-8244.
51(6),
p. 755–755.
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Barkhuizen, Wikus; Pingault, Jean-Baptiste; Wang, Biyao; Hannigan, Laurie John; Eilertsen, Espen Moen & Andreassen, Ole
[Show all 14 contributors for this article]
(2021).
Direct and indirect genetic influences involved in the intergenerational transmission of risk for ADHD in the Norwegian Mother, Father and Child Cohort.
Behavior Genetics.
ISSN 0001-8244.
51(6),
p. 692–691.
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Badini, Isabella; Lyngstad, Torkild Hovde; Eilertsen, Espen Moen; Ahmadzadeh, Yasmin I.; Wechsler, Daniel L & Zachrisson, Henrik Daae
[Show all 10 contributors for this article]
(2021).
Socioeconomic status and risk for child emotional and behavioral problems: Exploring gene-environment interaction in the presence of gene-environment correlation using extended families in the Norwegian Mother, Father and Child Birth Cohort Study.
Behavior Genetics.
ISSN 0001-8244.
51(6),
p. 691–691.
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Ayorech, Ziada; Gillespie Cheesman, Rosa Catherine; Eilertsen, Espen Moen; Havdahl, Alexandra & Ystrøm, Eivind
(2021).
Polygenic P: Characterising the role of general liability to psychopathology in maternal depression
.
Behavior Genetics.
ISSN 0001-8244.
51(5),
p. 690–690.
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Arneberg, Vilde Sofie; Fodstad, Vilde & Ystrøm, Eivind
(2021).
Stressful Life Events and Borderline Personality Disorder Traits.
Behavior Genetics.
ISSN 0001-8244.
51(5),
p. 690–690.
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Ystrøm, Eivind
(2021).
Twin studies with unknown zygosity.
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Ystrøm, Eivind
(2021).
Growth mixture modelling/group based trajectory modelling.
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Ystrøm, Eivind
(2021).
The role of genetics in health inequality research.
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Nygaard, Egil; Ystrøm, Eivind; Nes, Ragnhild Bang; Røysamb, Espen; Klomsten, Anne Torhild & Bjørnebekk, Gunnar
[Show all 7 contributors for this article]
(2021).
Effekt av det tverrfaglige temaet Folkehelse og livsmestring.
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Ayorech, Ziada; Gillespie Cheesman, Rosa Catherine; Eilertsen, Espen Moen; Torvik, Fartein Ask; Andreassen, Ole & Havdahl, Alexandra
[Show all 7 contributors for this article]
(2021).
Investigating Heterogeneity in Depression Using Multiple Polygenic Scores.
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Badini, Isabella; Lyngstad, Torkild Hovde; Eilertsen, Espen Moen; Ahmadzadeh, Yasmin I.; Wechsler, Daniel L & Zachrisson, Henrik Daae
[Show all 10 contributors for this article]
(2021).
Socioeconomic status and risk for child emotional and behavioral problems: Exploring gene-environment interaction in the presence of gene-environment correlation using extended families in the Norwegian Mother, Father and Child Birth Cohort Study.
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Ayorech, Ziada; Gillespie Cheesman, Rosa Catherine; Eilertsen, Espen Moen; Havdahl, Alexandra & Ystrøm, Eivind
(2021).
Polygenic P: Characterising the role of general liability to psychopathology in maternal depression
.
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Nygaard, Egil; Nes, Ragnhild Bang; Ystrøm, Eivind; Klomsten, Anne Torhild; Bjørnebekk, Gunnar & Folstad, Siri Hausland
[Show all 7 contributors for this article]
(2021).
Evaluering av implementering av det tverrfaglige temaet «Folkehelse og livsmestring» i norske skoler.
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Borgen, Nicolai T.; Hermansen, Are Skeie; Lyngstad, Torkild Hovde & Ystrøm, Eivind
(2020).
Misvisende om utdanningsulikhet.
Aftenposten (morgenutg. : trykt utg.).
ISSN 0804-3116.
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Ystrøm, Eivind
(2020).
Novel genetic methods.
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Gillespie Cheesman, Rosa Catherine & Ystrøm, Eivind
(2020).
Decoding genetic nurture effects on education.
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Gillespie Cheesman, Rosa Catherine; McAdams, Tom A. & Ystrøm, Eivind
(2020).
Family-based genomics and gene-environment interplay.
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Ahmadzadeh, Yasmin; McAdams, Tom & Ystrøm, Eivind
(2020).
Familial risk for internalising: using children-of-twins designs to examine genetic transmission and parent-child interactions.
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Gillespie Cheesman, Rosa Catherine; McAdams, Tom A. & Ystrøm, Eivind
(2020).
How important are parents in the development of child anxiety and depression?
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Gillespie Cheesman, Rosa Catherine; McAdams, Tom A. & Ystrøm, Eivind
(2020).
How important are parents in the development of child anxiety and depression?
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Gillespie Cheesman, Rosa Catherine; McAdams, Tom A. & Ystrøm, Eivind
(2020).
How important are parents in the development of child anxiety and depression? A genomic analysis of parent-offspring trios in the Norwegian Mother Father and Child Cohort Study.
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Wood, Mollie; Cohen, Jacqueline Mallory; Ystrøm, Eivind; Nordeng, Hedvig Marie Egeland & Hernandez-Diaz, Sonia
(2020).
Response to: Modelling paternal exposure as a negative control.
International Journal of Epidemiology.
ISSN 0300-5771.
49(3),
p. 1054–1055.
doi:
10.1093/ije/dyaa055.
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McAdams, Tom; Hannigan, Laurie; Eilertsen, Espen Moen; Gjerde, Line C. & Ystrøm, Eivind
(2019).
Does Maternal Stress During Pregnancy Predict Child Emotional and Behavioural Problems? Accounting for rGE and Exploring GxE.
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Lupattelli, Angela; Mahic, Milada; Handal, Marte; Ystrøm, Eivind; Reichborn-Kjennerud, Ted & Nordeng, Hedvig Marie Egeland
(2019).
Risk of attention deficit hyperactivity disorder in childhood after exposure to serotonergic antidepressants in pregnancy.
Pharmacoepidemiology and Drug Safety.
ISSN 1053-8569.
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Lund, Ingunn Olea; Skurtveit, Svetlana; Handal, Marte; Bukten, Anne; Torvik, Fartein Ask & Ystrøm, Eivind
[Show all 7 contributors for this article]
(2019).
Association of Constellations of Parental Risk With Children's Subsequent Anxiety and Depression: Findings From a HUNT Survey and Health Registry Study.
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Burdzovic, Jasmina; Torvik, Fartein Ask; Ystrøm, Eivind; Skurtveit, Svetlana; Handal, Marte & Lund, Ingunn Olea
(2019).
Alcohol use disorder (AUD) in offspring following exposure to parental risk constellations during adolescence: A combined HUNT survey and health registries study.
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Eftedal, Nikolai Haahjem; Kleppestø, Thomas Haarklau; Røysamb, Espen; Vassend, Olav; Ystrøm, Eivind & Thomsen, Lotte
(2019).
Moral opportunism: A unique genetic grounding associates lesser guilt from perpetrating injustice with greater sensitivity to being the victim of it.
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Gjerde, Line C.; Eilertsen, Espen Moen; Hannigan, Laurie; Eley, T.C.; Røysamb, Espen & Reichborn-Kjennerud, Ted
[Show all 9 contributors for this article]
(2019).
To what extent can passive genetic transmission account for associations between maternal depressive symptoms and child early life psychopathology symptoms?
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Ystrøm, Eivind
(2019).
Do Child and Adult ADHD Have the Same Genetic Risk Factors?
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Ahmadzadeh, Yasmin; Ystrøm, Eivind & McAdams, Tom A.
(2019).
Associations between maternal internalising and offspring temperament: Investigating both genetic and environmental intergenerational effects.
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McAdams, Tom A.; Ahmadzadeh, Yasmin; Torvik, Fartein Ask & Ystrøm, Eivind
(2019).
Stress During Pregnancy: Potential Effects on Child Development.
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McAdams, Tom A.; Ahmadzadeh, Yasmin; Ystrøm, Eivind & Torvik, Fartein Ask
(2019).
The Role of Parents in the Development of Emotional and Behavioural Problems in Their Children: Genetically Informative Approaches from Conception through Childhood.
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Ahmadzadeh, Yasmin; Eilertsen, Espen Moen; Hannigan, Laurie; Gjerde, Line C.; Gillespie Cheesman, Rosa Catherine & Ystrøm, Eivind
[Show all 7 contributors for this article]
(2019).
Intergenerational Associations between Maternal Internalising and Offspring Temperament During Early Childhood.
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Ahmadzadeh, Yasmin; Ystrøm, Eivind & McAdams, Tom A.
(2019).
Exploring associations between maternal internalising and offspring adjustment, using genetically sensitive research designs.
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Gillespie Cheesman, Rosa Catherine; Eilertsen, Espen Moen; Ahmadzadeh, Yasmin; Gjerde, Line C.; Hannigan, Laurie & Havdahl, Alexandra
[Show all 9 contributors for this article]
(2019).
Separating child and parent influences on child emotional problems using genomic family data.
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Gillespie Cheesman, Rosa Catherine; Ystrøm, Eivind & McAdams, Tom A.
(2019).
How important are parents in the development of child anxiety and depression? A genomic analysis of parent-offspring trios in the Norwegian Mother and Child Birth Cohort Study.
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Gillespie Cheesman, Rosa Catherine; Eilertsen, Espen Moen; Ahmadzadeh, Yasmin; Gjerde, Line C.; Hannigan, Laurie & Havdahl, Alexandra
[Show all 9 contributors for this article]
(2019).
Separating child and parent influences on child depression and anxiety using genomic family data.
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Middeldorp, CM; Akingbuwa, O; Jarvelin, MR; Lichtenstein, Paul; Lundstrom, S & Kuja-Halkola, Ralf
[Show all 13 contributors for this article]
(2019).
The value of polygenic risk scores in predicting the transition from childhood and adolescent psychiatric symptoms into chronic adult psychopathology.
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Middeldorp, CM; Akingbuwa, O; Jarvelin, MR; Lichtenstein, Paul; Lundstrom, S & Munafo, M
[Show all 13 contributors for this article]
(2019).
Do shared genetic factors explain the prediction of bipolar disorder by childhood psychiatric symptoms?
Bipolar Disorders.
ISSN 1398-5647.
21,
p. 18–18.
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Middeldorp, CM; Akingbuwa, O; Jarvelin, MR; Lichtenstein, Paul; Lundstrom, S & Munafo, M
[Show all 13 contributors for this article]
(2019).
Do shared genetic factors explain the prediction of bipolar disorder by childhood psychiatric symptoms?
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Jami, Eshim; Eilertsen, Espen Moen; Hammerschlag, Anke R.; Sallis, H; Qiao, Z & Evans, David
[Show all 9 contributors for this article]
(2019).
Maternal and Paternal Effects on Offspring Internalizing Problems: Findings from Family Data and Extended GCTA Analysis.
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Ystrøm, Eivind
(2019).
Intergenerational transmission of risk and mobility: genes, households, and neighborhoods.
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Ystrøm, Eivind
(2019).
Genetics of neurodevelopmental disorders.
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Ask, Helga; Eilertsen, Espen Moen; Gjerde, Line C.; Gustavson, Kristin; Hannigan, Laurie John & Havdahl, Alexandra
[Show all 11 contributors for this article]
(2019).
Intergenerational transmission of parental neuroticism to
offspring neuroticism, depression, and anxiety
.
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Torvik, Fartein Ask; Eilertsen, Espen Moen; Ask, Helga; Gustavson, Kristin; McAdams, Tom A. & Ystrøm, Eivind
(2019).
Mechanisms linking parental education with symptoms of ADHD and depression in children.
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Gjerde, Line C.; Eilertsen, Espen Moen; Rosenström, Tom Henrik; Reichborn-Kjennerud, Ted; McAdams, Tom A. & Eley, T.C.
[Show all 7 contributors for this article]
(2018).
The genetic and environmental structure of psychopathology spectra in middle childhood.
Behavior Genetics.
ISSN 0001-8244.
p. 473–474.
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Eilertsen, Espen Moen; Hannigan, Laurie John; McAdams, Tom A.; Rijsdijk, Fruhling; Czajkowski, Nikolai Olavi & Reichborn-Kjennerud, Ted
[Show all 8 contributors for this article]
(2018).
Parental prenatal depression and offspring ADHD: a genetically informed intergenerational study.
Behavior Genetics.
ISSN 0001-8244.
p. 469–469.
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Eilertsen, Espen Moen; Hannigan, Laurie John; Mcadams, Tom; Rijsdijk, Fruhling; Czajkowski, Nikolai Olavi & Reichborn-Kjennerud, Ted
[Show all 8 contributors for this article]
(2018).
Parental prenatal depression and offspring ADHD: A genetically informed intergenerational study.
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Ystrøm, Eivind; Eilertsen, Espen Moen; Gjerde, Line C.; Rijsdijk, Fruhling; Gustavson, Kristin & Ask, Helga
[Show all 8 contributors for this article]
(2018).
Assortative mating and intergenerational transmission of ADHD.
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Mcadams, Tom; Hannigan, Laurie John; Eilertsen, Espen Moen; Gjerde, Line C.; Reichborn-Kjennerud, Ted & Eley, Thalia C.
[Show all 8 contributors for this article]
(2018).
Maternal prenatal depression as a risk factor for early-life psychopathology in offspring: results from a genetically-informative, population-based sample.
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Ystrøm, Eivind
(2018).
Intergenerational Transmission of Internalizing and Externalizing Psychopathological Spectra.
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Ystrøm, Eivind
(2018).
Assortative mating, household effects, and family dynamics.
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Gjerde, Line C.; Eilertsen, Espen Moen; Rosenström, Tom Henrik; Reichborn-Kjennerud, Ted; Røysamb, Espen & McAdams, Tom A.
[Show all 8 contributors for this article]
(2018).
The Joint Structure of Psychopathology and Personality in Preadolescent Children – Preliminary Findings
.
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Villanger, Gro Dehli; Ystrøm, Eivind; Engel, Stephanie M.; Longnecker, Matthew P; Zoeller, R. Thomas & Pettersen, Rolf D.
[Show all 12 contributors for this article]
(2018).
Neonatal thyroid stimulating hormone and relationship with childhood ADHD
.
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Lund, Ingunn Olea; Skurtveit, Svetlana; Handal, Marte; Bukten, Anne; Torvik, Fartein Ask & Ystrøm, Eivind
[Show all 7 contributors for this article]
(2018).
Parental drinking and child long-term depression and anxiety: A longitudinal combined survey and registry study.
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Ystrøm, Eivind
(2017).
– Man tror man er Gud. At man er den som får personen ut av misbruket.
[Newspaper].
Romerikes Blad.
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Ystrøm, Eivind
(2017).
Gener styrer ofte vår alkoholbruk.
[Newspaper].
Dagbladet.
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Ystrøm, Eivind
(2017).
Acetaminophen use during pregnancy and risk for ADHD.
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Abel, Marianne Hope; Ystrøm, Eivind; Caspersen, Ida Henriette; Aase, Heidi; Torheim, Liv Elin & Meltzer, Helle Margrete
[Show all 9 contributors for this article]
(2017).
Maternal use of iodine-containing supplements in pregnancy is associated with increased risk of child attention-deficit/hyperactivity disorder.
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Rosenström, Tom Henrik; Czajkowski, Nikolai Olavi; Ystrøm, Eivind; Krueger, RF; Aggen, Steven H. & Gillespie, Nathan A.
[Show all 9 contributors for this article]
(2017).
Stressful life events, antisocial and borderline personality traits, and alcohol use disorder: a genetically informative mediation study.
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Eilertsen, Espen Moen; Gjerde, Line C.; Rijsdijk, Fruhling; McAdams, Tom A. & Ystrøm, Eivind
(2017).
Disentangling genetic transmission from the environmental effect of maternal depression during pregnancy on offspring ADHD.
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Rijsdijk, Frühling; Ystrøm, Eivind; Gjerde, Line C.; Eilertsen, Espen Moen & Mcadams, Tom
(2017).
Investigating Intergenerational Associations: Revisting the Children-of-Twins Design II.
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Mcadams, Tom; Ystrøm, Eivind; Gjerde, Line C.; Eilertsen, Espen Moen & Rijsdijk, Frühling
(2017).
Investigating Intergenerational Associations: Revisiting the Children-of-Twins Design I.
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Ystrøm, Eivind
(2017).
Paracetamol exposure in pregnancy and offspring ADHD: familial risk and confounding by indication.
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Ystrøm, Eivind; Gustavson, Kristin; Brandlistuen, Ragnhild Eek; Knudsen, Gun Peggy; Magnus, Per & Susser, Ezra
[Show all 14 contributors for this article]
(2017).
Acetaminophen exposure in pregnancy and offspring ADHD: familial risk and confounding by indication.
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Ystrøm, Eivind; Eilertsen, Espen Moen; Rijsdijk, Fruhling; Gjerde, Line C. & McAdams, Tom A.
(2017).
Intergenerational transmission of adult to child ADHD in a populationbased cohort study.
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Ystrøm, Eivind; Rijsdijk, Fruhling; Gjerde, Line C.; Eilertsen, Espen Moen & McAdams, Tom A.
(2017).
Investigating intergenerational transmission of risk in a unique Norwegian extended twin-family sample.
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Gjerde, Line C.; Eilertsen, Espen Moen; McAdams, Tom A.; Rijsdijk, Fruhling & Ystrøm, Eivind
(2017).
Disentangling the effects of maternal depressive symptoms to child internalizing and externalizing problems – an extended children of twins study.
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Lund, Ingunn Olea; Eilertsen, Espen Moen; Gjerde, Line C. & Ystrøm, Eivind
(2017).
Maternal alcohol consumption during 1st trimester and child internalizing and externalizing problems: A sibling control study.
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Lund, Ingunn Olea; Eilertsen, Espen Moen; Gjerde, Line C.; Røysamb, Espen; Wood, Mollie & Reichborn-Kjennerud, Ted
[Show all 7 contributors for this article]
(2017).
Prenatal Exposure to Alcohol and Child Internalizing and Externalizing Problems.
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Gjerde, Line C.; Eilertsen, Espen Moen & Ystrøm, Eivind
(2017).
Hvordan går psykiske lidelser igjen i familier? En presentasjon av ITOR studien.
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Ystrøm, Eivind
(2016).
Norsk studie: Cannabismisbruk tredobler risiko for psykose.
[Newspaper].
Aftenposten.
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Ystrøm, Eivind
(2016).
Sant og usant om psykisk helse – perspektiv fra en psykolog.
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Ystrøm, Eivind
(2016).
Paracetamol in pregnancy and offspring ADHD – challenges inferring causality.
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Ystrøm, Eivind
(2015).
En genetisk informativ intergenerasjonell studie på alkoholbruk og psykiske helse.
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Ystrøm, Eivind; Reichborn-Kjennerud, Ted; Torvik, Fartein Ask & Nesvåg, Ragnar
(2015).
Common genetic and environmental risk factors for psychosis, mania, and personality disorders.
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Nordeng, Hedvig Marie Egeland; Wood, Mollie; Frazier, Jean; Lapane, Kate L.; Ystrøm, Eivind & Mick, Eric O.
(2015).
Prenatal triptan exposure increases externalizing behaviors at three years: results from the Norwegian Mother and Child Cohort Study.
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Brandlistuen, Ragnhild Eek; Ystrøm, Eivind; Eberhard-Gran, Malin; Nulman, Irena; Koren, Gideon & Nordeng, Hedvig Marie Egeland
(2015).
Behavioural effects of fetal antidepressant exposure in a Norwegian cohort of discordant siblings.
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Nezvalova-Henriksen, Katerina; Spigset, Olav; Ystrøm, Eivind; Brandlistuen, Ragnhild Eek; Koren, Gideon & Nordeng, Hedvig Marie Egeland
(2015).
Effect Of Selective Serotonin Reuptake Inhibitor (SSRI) Exposure During Pregnancy On Birth Weight And Gestational Age: A Sibling-Controlled Cohort Study.
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Juch, Herbert; Lupattelli, Angela; Verheyen, S; Ystrøm, Eivind & Nordeng, Hedvig Marie Egeland
(2015).
Hypothyroidism and medication adherence in pregnancy - a cross-sectional, multinational web-based study.
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Czajkowski, Nikolai Olavi; Aggen, Steven H.; Knudsen, Gun Peggy; Krueger, Robert F; Neale, Michael C. & Ystrøm, Eivind
[Show all 9 contributors for this article]
(2015).
Modest overlap in the genetic influences underlying normal and abnormal personality.
Show summary
Background and aims: Substantial correlations between normal and abnormal personality traits have been found, but there is still little knowledge regarding the extent to which the underlying genetic and environmental influences are shared.
Methods: 2,282 Norwegian twins were assessed for DSM-IV criteria for personality disorders using structured interviews. Ten years later years the twins were re-interviewed, and normal personality was assessed using the Big Five Inventory. Multivariate twin models were fitted to the five domains of normal personality and dimensional measures of each of the personality disorders individually.
Results: While the heritability of the number endorsed criteria for the personality disorders ranged from 0.2 to 0.41, the proportion of genetic variance that was unique to each PD ranged from 19% for Avoidant to 79% for Schizotypal, with a median of 58% across all PDs. Conversely, the proportion of environmental variance unique to the personality disorder criteria ranged from 79% to 99%, with median of 97%.
Conclusion: Our results suggest that a considerable proportion of the genetic variance and virtually all environmental variance is unique to the personality disorders, and not shared with the five broad domains of normal personality.
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Torvik, Fartein Ask; Welander-Vatn, Audun; Ystrøm, Eivind; Knudsen, Gun Peggy; Czajkowski, Nikolai Olavi & Kendler, Kenneth S.
[Show all 7 contributors for this article]
(2015).
Ten-year stability of avoidant personality disorder and social anxiety disorder: A twin study.
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Ystrøm, Eivind; Reichborn-Kjennerud, Ted; Gillespie, Nathan; Torvik, Fartein Ask; Czajkowski, Nikolai Olavi & Krueger, Robert F
[Show all 8 contributors for this article]
(2015).
Psychosis, mania and personality disorders.
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Gjerde, Line C.; Czajkowski, Nikolai Olavi; Røysamb, Espen; Ystrøm, Eivind; Tambs, Kristian & Aggen, Steven H.
[Show all 10 contributors for this article]
(2015).
Avoidant and obsessive-compulsive personality disorder traits from early to middle adulthood.
Show summary
Backgroundand Aims: The stability over time for avoidant personality disorder (AVPD) and obsessive-compulsive personality disorder (OCPD) has previously been found to be moderate. However, the mechanisms underlying this temporal development are not well understood. In the present study we estimate the influence of genetic and environmental factors on stability and change in AVPD and OCPD.
Methods: AVPD and OCPD traits were assessed using the Structured Interview for DSM-IV Personality in 2,793 young adult twins from the Norwegian Institute of Public Health Twin Panel (wave 1). On average 10 years later (wave 2) 2,282 of these were re-interviewed. Longitudinal biometric models were fitted to dimensional representations of AVPD and OCPD.
Results: The number of endorsed sub-threshold criteria for both PDs decreased 31% from wave 1 to wave 2. The correlations between the numbers of traits endorsed at the two time points were 0.54 for AVPD and 0.37 for OCPD. Genetic factors contributed 67% and 53%, respectively, to the stability of AVPD and OCPD. The correlations between the genetic factors influencing AVPD and OCPD at the two time points were 1.00 and 0.72 respectively, while the environmental influences correlated 0.26 and 0.23, respectively. The correlation between the stable risk factors for AVPD and OCPD was 0.39 of which 63% was attributable to genetic influences.
Conclusion: Both AVPD and OCPD were moderately stable from young to middle adulthood. Stability was in large part due to genetic factors, whereas environmental influences contributed to change.
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Reichborn-Kjennerud, Ted; Czajkowski, Nikolai Olavi; Ystrøm, Eivind; Ørstavik, Ragnhild; Aggen, Steven H. & Tambs, Kristian
[Show all 12 contributors for this article]
(2015).
Borderline and antisocial personality disorder traits in early to middle adulthood: A longitudinal twin study.
Show summary
Background and Aims: Antisocial personality disorder (ASPD) and borderline personality disorder (BPD) share genetic and environmental risk factors. Little is known about the temporal stability of these etiological factors in adulthood.
Methods: DSM-IV criteria for ASPD and BPD were assessed using structured interviews in 2,282 Norwegian twins in early adulthood and approximately 10 years later. Longitudinal biometric models were used to analyze the number of endorsed criteria.
Results: The mean criterion count for ASPD and BPD decreased 40% and 28% respectively from early to middle adulthood. Rank-order stability was 0.58 for ASPD and 0.45 for BPD. The best-fitting longitudinal twin model included only genetic and individual-specific environmental factors. Genetic effects, both those shared by ASPD and BPD, and those specific to each disorder remained completely stable. The unique environmental effects, however, changed substantially, with a correlation across time of 0.19 for the shared effects, and 0.39 and 0.15 respectively for those specific to ASPD and BPD. Genetic effects accounted for 71% and 72% of the stability over time for ASPD and BPD respectively. The genetic and environmental correlations between ASPD and BPD were 0.73, and 0.43 respectively at both time points.
Conclusion: ASPD and BPD traits were moderately stable from early to middle adulthood, mostly due to genetic risk factors which did not change over the10 year assessment period. Environmental risk factors were mostly transient, and appear to be the main source of phenotypic change. Genetic liability factors were, to a large extent, shared by ASPD and BPD.
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Gjerde, Line C.; Czajkowski, Nikolai Olavi; Røysamb, Espen; Ystrøm, Eivind; Tambs, Kristian & Aggen, Steven H.
[Show all 10 contributors for this article]
(2015).
Avoidant and obsessive-compulsive personality disorder traits from early to middle adulthood.
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Gjerde, Line C.; Eilertsen, Espen Moen; Reichborn-Kjennerud, Ted & Ystrøm, Eivind
(2015).
IToR - a novel, prospective extended children of twins study.
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Eilertsen, Espen Moen; Gjerde, Line C.; Reichborn-Kjennerud, Ted & Ystrøm, Eivind
(2015).
Maternal alcohol use during pregnancy and offspring ADHD.
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Brandlistuen, Ragnhild Eek; Ystrøm, Eivind; Eberhard-Gran, Malin; Nulman, Irena; Koren, Gideon & Nordeng, Hedvig Marie Egeland
(2015).
Behavioral Effects of Fetal Antidepressant Exposure in a Norwegian Cohort of Dicordant Siblings.
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Brandlistuen, Ragnhild Eek; Ystrøm, Eivind; Nulman, Irena; Koren, Gideon & Nordeng, Hedvig Marie Egeland
(2015).
Annotations and Reflections: Response to “Pregnancy and Paracetamol: Methodological Considerations on the Study of Associations between In Utero Exposure to Drugs and Childhood Neurodevelopment”.
Basic & Clinical Pharmacology & Toxicology.
ISSN 1742-7835.
116(1),
p. 6–8.
doi:
10.1111/bcpt.12339.
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Nezvalova-Henriksen, Katerina; Spigset, Olav; Ystrøm, Eivind; Eek Brandlistuen, Ragnhild; Nordeng, Hedvig Marie Egeland & Koren, Gideon
(2014).
Prenatal antidepressant exposure and immediate pregnancy outcome – advantages of using a sibling control design.
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Ystrøm, Eivind
(2014).
Alkoholisme er arvelig.
[Radio].
P5.
Show summary
Ny forskning viser at sjansene for at du blir alkoholsmisbruker i voksen alder, henger sammen med gener og arv, og ikke miljøet man vokser opp i.
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Ystrøm, Eivind
(2014).
Hasjavhengighet.
[Radio].
NRK Norgesglasset.
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Ystrøm, Eivind
(2014).
"Født sånn eller blitt sånn" Hvordan bidrar arv og miljø til alkohol og rusmisbruk og personlighetsforstyrrelser?
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Ystrøm, Eivind
(2014).
Waffelwut und Pizzapanik.
[Business/trade/industry journal].
Psychologie Heute.
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Ystrøm, Eivind; Kendler, Kenneth S.; Knudsen, Gun Peggy & Reichborn-Kjennerud, Ted
(2013).
Common genetic and environmental risk factors for DSM-IV personality disorders and alcohol use disorders.
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Østby, Kristian Amundsen; Gjerde, Line C.; Knudsen, Gun Peggy & Ystrøm, Eivind
(2013).
Personality disorders in young adult twins: functional impairment and comorbidity.
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Østby, Kristian Amundsen; Torvik, Fartein Ask & Ystrøm, Eivind
(2013).
Når lønnsomhet får styre.
Dagbladet.
ISSN 0805-3766.
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Welander-Vatn, Audun; Ystrøm, Eivind; Tambs, Kristian; Kendler, Kenneth; Reichborn-Kjennerud, Ted & Knudsen, Gun Peggy
(2013).
A population-based twin study of the relationship between anxiety disorders and dimensional representations of personality disorders.
Behavior Genetics.
ISSN 0001-8244.
43(6),
p. 548–548.
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Ystrøm, Eivind
(2013).
Underkjent artikkel som førstesidestoff.
Tidsskrift for Norsk Psykologforening.
ISSN 0332-6470.
50,
p. 1214–1214.
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Ystrøm, Eivind & Reichborn-Kjennerud, Ted
(2013).
Is age of alcohol use initiation a risk indicator or risk mediator for alcohol use disorders in young adulthood?
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Brandlistuen, Ragnhild Eek; Mamak, E.; Nulman, Irena; Koren, G; Ystrøm, Eivind & Nordeng, Hedvig M Egeland
(2012).
The Norwegian Mother and Child Project: Neurodevelopmental Outcome of Three-Year-Old Children Exposed In Utero to Acetaminophen.
Birth Defects Research Part A: Clinical and Molecular Teratology.
ISSN 1542-0752.
94(5),
p. 406–406.
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Ystrøm, Eivind; Kendler, Kenneth S. & Reichborn-Kjennerud, Ted
(2012).
Is age of alcohol use initiation a risk indicator or risk mediator for alcohol use disorders in young adulthood?
Behavior Genetics.
ISSN 0001-8244.
42(6),
p. 978–978.
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Ystrøm, Eivind
(2012).
Psykisk helse hos gravide og førskolebarn: Studier ved divisjon for psykisk helse.
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Ystrøm, Eivind
(2012).
Delte genetiske og miljømessige risikofaktorer for vanlige psykiske lidelser og alkoholisme.
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Ystrøm, Eivind
(2012).
Genetiske og miljømessige risikofaktorer for rusmiddelmisbruk og vanlige psykiske lidelser: En populasjonsbasert tvillingstudie.
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Ystrøm, Eivind
(2012).
Post Hjernevask: I norsk samfunnsforskning har foreldrene fortsatt skylden.
[Newspaper].
Morgenbladet - kronikk.
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Ystrøm, Eivind; Kendler, Kenneth S. & Reichborn-Kjennerud, Ted
(2012).
Is age of alcohol use initiation a risk indicator or risk mediator for alcohol use disorders in young adulthood?
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Ystrøm, Eivind
(2012).
EKKO Viten: Ungdomsfylla.
[Radio].
NRK.
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Ystrøm, Eivind
(2012).
Etter Hjernevask: Norsk samfunnsforskning gir fortsatt foreldrene skylden.
Morgenbladet.
ISSN 0805-3847.
193.
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Ystrøm, Eivind
(2012).
En norsk tvillingstudie av genetiske og miljømessige årsaksfaktorer for rusmiddelmisbruk.
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Ystrøm, Eivind; Kendler, Kenneth S. & Reichborn-Kjennerud, Ted
(2011).
Is age of alcohol use initiation the cause of alcohol use disorders in young adulthood? A population-based twin study.
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Ystrøm, Eivind
(2011).
Søsken og naturvitenskapen.
In Botheim, Guri Sørumgård; Botheim, Sigrid Sørumgård; Solbu, Kjersti Rognes & Solbu, Ingrid Rognes (Ed.),
Søsken.
Det Norske Samlaget.
ISSN 9788252179637.
p. 40–50.
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Ystrøm, Eivind & Reichborn-Kjennerud, Ted
(2011).
Alkoholproblemer går i arv.
Aftenposten (morgenutg. : trykt utg.).
ISSN 0804-3116.
152(251),
p. 5–5.
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Ystrøm, Eivind
(2011).
Alkosug mest arv.
[Newspaper].
Aftenposten.
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Ystrøm, Eivind
(2011).
Alkoholisme går i arv.
[Internet].
nrk.no.
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Ystrøm, Eivind
(2011).
Alkoholavhengighet over 70 prosent arvelig.
[Internet].
forskning.no.
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Ystrøm, Eivind
(2011).
Oft-used DSM diagnosis of alcohol dependence shows reliability.
[Internet].
EurekAlert!.
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Ystrøm, Eivind
(2011).
Ekko - et aktuelt samfunnsprogram.
[Radio].
NRK P2.
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Ystrøm, Eivind
(2011).
Familiære årsaksfaktorer for rusmiddelmisbruk og implikasjoner for forebygging.
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Ystrøm, Eivind
(2011).
Self and co‐twin ratings of illicit substance use disorders.
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Zambrana, Imac Maria; Ystrøm, Eivind & Pons, Francisco
(2011).
Predicting late development of language comprehension from 18 to 36 months. Paper.
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Ystrøm, Eivind
(2011).
Spesifikke og generelle genetiske og miljømessige risikofaktorer for bruk, misbruk og avhengighet av ulovlige rusmidler: En populasjonsbasert tvillingstudie.
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Zambrana, Imac Maria; Ystrøm, Eivind & Pons, Francisco
(2010).
Early nonverbal communication and language from 18 to 36 months: A population study. Poster.
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Ystrøm, Eivind & Reichborn-Kjennerud, Ted
(2010).
Tvil om kampanjer mot ung fyll.
[Newspaper].
VG.
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Ystrøm, Eivind
(2010).
Genetikk er ikke skjebne.
[Newspaper].
Mot stoff: Tidsskrift for landsforbundet mot stoffmisbruk.
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Ystrøm, Eivind; Reichborn-Kjennerud, Ted & Kendler, Kenneth S
(2010).
Alcohol dependence: Diagnostic stability and heritability.
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Ystrøm, Eivind
(2010).
Age of alcohol initiation and personality disorders as predictors of alcohol problems in early adulthood: A twin study.
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Ystrøm, Eivind
(2010).
The diagnostic stability and heritability of alcohol dependence.
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Ystrøm, Eivind
(2010).
Årsaker til fedme hos barn.
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Ystrøm, Eivind
(2010).
Familiære årsaksfaktorer for rusmisbruk.
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Ystrøm, Eivind
(2010).
Overvekt og fedme hos barn - noen årsakssammenhenger.
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Ystrøm, Eivind
(2009).
Vet for lite om alkoholens arv.
[Internet].
forskning.no.
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Ystrøm, Eivind
(2009).
Mat og mor.
[Internet].
forskning.no.
-
Ystrøm, Eivind
(2009).
Fødselsdepresjoner kan føre til barnefedme.
[Internet].
Aftenposten.no.
-
Ystrøm, Eivind
(2009).
Presser mat i barna sine.
[Internet].
klikk.no.
Show summary
En viss type mødre bruker makt når de gir barna mat.
Nå viser det deg at psyken til mor kan påvirke barns ernæring.
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Ystrøm, Eivind; Kendler, Kenneth S & Reichborn-Kjennerud, Ted
(2009).
Common genetic risk factors for borderline personality disorder and alcoholism.
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Ystrøm, Eivind; Vollrath, Margarete E. & Nordeng, Hedvig M Egeland
(2009).
Does personality affect medication use and use of substances during pregnancy?
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Ystrøm, Eivind; Vollrath, Margarete E. & Nordeng, Hedvig M Egeland
(2009).
Does personality affect medication use and use of substances during pregnancy?
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Langballe, Ellen Melbye & Ystrøm, Eivind
(2009).
Målinvarians: Mållikhet på tvers av grupper eller tid - en forutsetning for å kunne sammenligne.
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Ystrøm, Eivind
(2009).
Axis I Axis II study: Age of alcohol initiation, personality disorders, and alcohol problems in early adulthood.
-
Ystrøm, Eivind
(2008).
Påvirkningen av mødres negative affektivitet, parental locus of control og child feeding på ernæringsmønstre hos 3 år gamle barn.
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Ystrøm, Eivind; Niegel, Susan; Klepp, Knut-Inge & Vollrath, Margarete E.
(2007).
The impact of maternal negative affectivity and self-efficacy on breastfeeding.
Health Psychology Review.
ISSN 1743-7199.
1.
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Niegel, Susan; Ystrøm, Eivind & Vollrath, Margarete E.
(2007).
Do difficult infants get the bottle instead of the breast?
Health Psychology Review.
ISSN 1743-7199.
1,
p. 168–169.
-
Ystrøm, Eivind
(2007).
Trist mor ammer mindre.
[Newspaper].
Aftenposten (aftenutg.).
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Ystrøm, Eivind; Niegel, Susan; Klepp, Knut-Inge & Vollrath, Margarete E.
(2007).
Breastfeeding and personality traits: the impact of maternal negative affectivity and self-efficacy on breastfeeding. The Norwegian Mother and Child Cohort Study.
Show summary
Objective: To measure the impact of the personality traits of Negative Affectivity and General Self-Efficacy measured during pregnancy to predict breastfeeding status at 4-months postpartum, adjusting for cesarean section, premature birth, parity, maternal age, and years of maternal education.
Design: Prospective cohort study.
Setting: The data collection was conducted as part of the Norwegian Mother and Child Cohort Study at the Norwegian Institute of Public Health. The national sample of 29,581 mothers completed assessment of Negative Affectivity and General Self-Efficacy at gestation weeks 17 and 30 and completed a self-report questionnaire at 6-months postpartum capturing detailed information about nutrition from birth thru 6 months.
Outcome Measures: Mothers were classified with a cut-off at 4 months in the groups full breastfeeding, mixed breastfeeding, and bottle feeding.
Results: We found that each interval of high Negative Affectivity increased the odds ratio of mixed breastfeeding (OR, 1.39; 95% CI, 1.27-1.51) and bottle feeding (OR, 1.56; 95% CI, 1.39-1.76), compared to full breastfeeding. Each interval of high General Self-Efficacy decreased the odds ratio of bottle feeding at 4 months (OR, 0.89; 95% CI, 0.83-0.96) but not of mixed breastfeeding (OR, 1.00; 95% CI, 0.95-1.04), compared to full breastfeeding.
Conclusions: Our results support the hypothesis that Negative Affectivity and General Self-Efficacy are important antenatal predictors of breastfeeding 4 months postpartum. Adequately addressing the concerns and difficulties of mothers high in Negative Affectivity and low in General Self-Efficacy during prenatal and antenatal care could help prevent difficulties to sustain full breastfeeding.
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Niegel, Susan; Ystrøm, Eivind & Vollrath, Margarete E.
(2007).
Vanskelig temperament og vektutvikling hos spedbarn.
-
Niegel, Susan; Ystrøm, Eivind & Vollrath, Margarete E.
(2007).
Do difficult infants get the bottle instead of the breast.
-
Ystrøm, Eivind; Niegel, Susan; Klepp, Knut-Inge & Vollrath, Margarete E.
(2007).
The impact of maternal negative affectivity and self-efficacy on breastfeeding.
-
Ystrøm, Eivind; Niegel, Susan; Klepp, Knut-Inge & Vollrath, Margarete E.
(2007).
The impact of maternal negative affectivity and general self-efficacy on breastfeeding: the Norwegian Mother and Child Cohort Study.
-
Niegel, Susan; Ystrøm, Eivind & Vollrath, Margarete E.
(2007).
Do difficult infants get the bottle instead of the breast.
-
Ystrøm, Eivind; Niegel, Susan; Klepp, Knut-Inge & Vollrath, Margarete E.
(2007).
Kunsten å tenke negativt: Effekten av mors personlighetstrekk på amming.
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Niegel, Susan; Ystrøm, Eivind & Vollrath, Margarete E.
(2007).
Vanskelig temperament og vektutvikling blant spedbarn.
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Niegel, Susan; Ystrøm, Eivind & Vollrath, Margarete E.
(2006).
Barns temperament og overvektEn oppfølgingsstudie av 9000 norske barn fra fødsel til 3-års alderen.
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Ystrøm, Eivind; Niegel, Susan; Klepp, Knut-Inge & Vollrath, Margarete E.
(2006).
Bryst eller flaska? Effekten av mors negative affektivitet og self-efficacy på amming. Den norske mor og barn-undersøkelsen.
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Ystrøm, Eivind; Ystrøm, Hilde Thorsen & Vollrath, Margarete E.
(2006).
Betydningen av trekk og taktikker for tilfredshet i parforhold.
-
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Nordvik, Jan Egil & Ystrøm, Eivind
(2004).
Feilfri læring som metode for kognitiv rehabilitering etter traumatisk hjerneskade.
Show summary
Svekkelse av kognitive funksjoner som hukommelse og språkforståelse er en utbredt følge av traumatisk hjerneskade. De senere årene har flere studier undersøkt feilfri læring ("errorless learning") som metode for kognitiv rehabilitering etter traumatisk hjerneskade. Studiene rapporterer at feilfri læring gir bedre læringsresultater enn læring gjennom prøving og feiling
("errorful learning"). Feilfri læring baseres på et prinsipp
for læring der anledningen til å gjøre feil reduseres eller elimineres. Den aktuelle pasientgruppen regnes som spesielt sårbar for at de feil som gjøres i en læringssituasjon, kan forstyrre innlæringen av riktig informasjon. Så langt har forskning på dette feltet vært konsentrert om kontrollerte, eksperimentelle situasjoner, og har i liten grad dokument klinisk anvendelse av feilfri læring som metode for rehabilitering. Målsetningene for denne studien er 1) å undersøke mulige forbedringer eller raffineringer av læringsteknikker basert på feilfri læring, og 2) evaluere feilfri læring i klinisk rehabilitering av personer som har vært utsatt for traumatisk hjerneskade.
-
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Ystrøm, Eivind
(2009).
Maternal negative affectivity and childfeeding: results from the Norwegian mother and child cohort study.
Unipub forlag.
ISSN 1504-3991.
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Tetzchner, Stephen von; Brandtzæg, Sissel & Ystrøm, Eivind
(2007).
Prososial atferd hos 3 år gamle barn av mødre som rapporterer om angst og depresjon i barnas første leveår.
Universitetet i Oslo.
Show summary
Bakgrunn: Angst og depresjon hos mødre påvirker flere prosesser hos barn som er viktig for utvikling av prososial atferd. Det finnes ikke undersøkelser som har sett på sammenhengen mellom prososial atferd hos barn i førskolealder og mødre med angst og depresjon.
Mål: Å undersøke i en ikke-klinisk populasjon om det var en sammenheng mellom prososial atferd hos 3 år gamle barn og mødrenes angst og depresjon når barnet var 6, 18 og 36 måneder. Det andre målet var å undersøke om effekten av mors angst og depresjon ble
moderert av om barnet vokste opp sammen med andre barn i husholdningen og om barnet var i barnehage eller lignende på dagtid. Det siste målet var å undersøke om det var en sammenheng mellom varigheten på angsten og depresjonen hos mødrene og barnas prososiale atferd.
Metode: Datainnsamlingen ble utført som en del av Den norske mor og barn undersøkelsen(MoBa) ved Nasjonalt folkehelseinstitutt. Utvalget besto av 5314 mødre og barn. Mødrene besvarte spørreskjemaer når de var i 18. svangerskapsuke og da barna var 6, 18 og 36 måneder gamle. Mødrene rapporterte om barnas prososiale atferd, da barna var 3 år gamle. Dette ble målt med prososial skala i SDQ. Mødrene rapporterte om egen angst og depresjon som målt med SCL-8 da barna var 6, 18 og 36 måneder gamle. Prososial atferd ble inndelt i normalskårer (80. prosentil) og lav skårer (20. prosentil).
Resultater: Lav prososial atferd hos 3 år gamle barn ble predikert av angst og depresjon hos mor da barnet var 6, 18 og 36 måneder, også etter at det var kontrollert for sosiodemografiske variabler og faktorer i barnets proksimale miljø. Både det å være hjemme med mor eller far i 18. levemåned og hjemme med mor i tredje leveår, predikerte større sannsynlighet for å ha lav prososial atferd, sammenlignet med om barnet var i barnehage eller lignende. Effekten av
mors angst og depresjon på barnets prososialitet ble ikke moderert av om barnet var i barnehage eller lignende. Barnas lave prososiale atferd ble predikert av tilbakevendende angst og depresjon hos mor i barnas tre første leveår, men ikke av vedvarende eller kortvarig angst
og depresjon.
Konklusjon: Angst og depresjon hos mødre har en betydning for 3 år gamle barns utvikling av prososial atferd. Mors angst og depresjon påvirker barnets utvikling av prososial atferd fra det er spedbarn og til det er 3 år gammelt. Selv ikke å tilbringe tid i barnehage, park, hosdagmamma, praktikant eller med far, reduserer denne risikoen.
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Vollrath, Margarete E.; Ystrøm, Eivind & Ystrøm, Hilde Thorsen
(2005).
Betydning av trekk og taktikker for tilfredshet i parforhold.
Universitetet i Oslo.
ISSN 82-569-2212-5.
Show summary
Denne studiens hovedmål var å undersøke hvilken rolle personlighetstrekk etter
femfaktormodellen, og manipuleringstaktikker (Buss, 1992), spilte for tilfredsheten i et
parforhold. Det ble postulert at manipuleringstaktikker medierer sammenhengen mellom
partners personlighet og egen tilfredshet. Dette ble gjort ved å undersøke følgende
sammenhenger: a) forholdet mellom tilfredshet og personlighet, b) forholdet mellom
manipuleringstaktikker og personlighet, c) forholdet mellom manipuleringstaktikker og
tilfredshet, d) forholdet mellom personlighetstrekk og tilfredshet, mediert av
manipuleringstaktikker. Studien har også undersøkt kjønnsforskjeller og personlighetslikhet
mellom ektefeller. Denne studien har vært et selvstendig forskningsprosjekt, hvor det har blitt
oversatt og satt sammen et spørreskjema bestående av selvrapportert personlighet (BFI),
tilfredshet i parforhold (RAS), samt selvrapportert og partnerrapportert bruk av
manipuleringstaktikker (ToM) i parforhold. Det ble samlet inn data fra 242 par med barn i
grunnskolen, hvor hver av ektefellene svarte selvstendig på hvert sitt skjema. Dataanalysene
inkluderte regresjonsanalyse og strukturlikningsmodellering.
Resultatene viste at nevrotisisme hadde en negativ sammenheng med tilfredshet, mens
omgjengelighet og samvittighetsfullhet hadde en positiv sammenheng med tilfredshet. Videre
at egne personlighetstrekk, heller enn ektefellens personlighetstrekk alene var av størst
betydning for egen tilfredshet. Det var mange sammenhenger mellom personlighetsrekk og
manipuleringstaktikker for både kvinner og menn. De fleste fantes mellom omgjengelighet,
nevrotisisme og samvittighetsfullhet i forhold til egenrapporterte manipuleringstaktikker.
Bruken av taktikker generelt og umodenhetstaktikker spesielt viste negativ sammenheng med
tilfredshet for både kvinner og menn. En strukturell likningsmodell på tilfredshet og
personlighet mediert av taktikker viste at egen tilfredshet var predikert av egne
personlighetstrekk, og ikke predikert av ektefellens personlighetstrekk alene, men mediert av
partners manipuleringstaktikker. Resultatene tyder på at egen personlighet har mer å si for
egen tilfredshet enn ektefelles personlighet. Det ser ut til at nevrotisisme og mangel på
omgjengelighet og samvittighetsfullhet, sammen med umodenhetstaktikker gir et solid
amalgam som forringer ektefellens tilfredshet.
