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Showing results 1-50 of 106 << Previous 1 2 3    Next >>

2019
1 Biele, Guido; Gustavson, Kristin; Czajkowski, Nikolai Olavi; Nilsen, Roy Miodini; Reichborn-Kjennerud, Ted; Magnus, Per; Stoltenberg, Camilla; Aase, Heidi.
Bias from self selection and loss to follow-up in prospective cohort studies. European Journal of Epidemiology (EJE) 2019 ;Volume 34.(10) p. 927-938
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2 Glad, Kristin Alve; Czajkowski, Nikolai Olavi; Dyb, Grete; Hafstad, Gertrud Sofie.
Cross-Lagged Association Between Symptoms of Posttraumatic Stress Disorder and Perceived Centrality of a Terrorist Attack. Clinical Psychological Science 2019
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3 Kendler, Kenneth S.; Aggen, Steven H.; Gillespie, Nathan; Czajkowski, Nikolai Olavi; Ystrøm, Eivind; Reichborn-Kjennerud, Ted.
A twin study of cigarette and snus initiation and quantity of use in Norwegian Adult Twins. Twin Research and Human Genetics 2019 ;Volume 22.(2) p. 108-113
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4 Kendler, Kenneth S.; Aggen, Steven H.; Gillespie, Nathan; Krueger, Robert F.; Czajkowski, Nikolai Olavi; Ystrøm, Eivind; Reichborn-Kjennerud, Ted.
The structure of genetic and environmental influences on normative personality, abnormal personality traits, and personality disorder symptoms. Psychological Medicine 2019 ;Volume 49.(8) p. 1392-1399
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5 Kleppestø, Thomas Haarklau; Czajkowski, Nikolai Olavi; Vassend, Olav; Røysamb, Espen; Eftedal, Nikolai Haahjem; Kunst, Jonas R.; Sheehy-Skeffington, Jennifer; Thomsen, Lotte.
Social dominance orientation has both genetic and unique environmental influences, but only genetic pleiotropy accounts for its correlation with political attitudes.. Human Behaviour and Evolution Society; 2019-06-05 - 2019-06-11
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6 Kleppestø, Thomas Haarklau; Czajkowski, Nikolai Olavi; Vassend, Olav; Røysamb, Espen; Eftedal, Nikolai Haahjem; Sheehy-Skeffington, Jennifer; Kunst, Jonas R.; Thomsen, Lotte.
Correlations between social dominance orientation and political attitudes reflect common genetic underpinnings. Proceedings of the National Academy of Sciences of the United States of America 2019 ;Volume 116.(36) p. 17741-17746
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7 Rognli, Erling W.; Villabø, Marianne; Czajkowski, Nikolai Olavi.
Discrepant Reports of Parent-adolescent Conflict is Associated with Hopelessness in Adolescent Depression. 14th International Conference on Child and Adolescent Psychopathology; 2019-07-22 - 2019-07-24
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8 Rosenström, Tom Henrik; Czajkowski, Nikolai Olavi; Ystrøm, Eivind; Krueger, Robert F; Aggen, Steven H; Gillespie, Nathan A; Eilertsen, Espen Moen; Reichborn-Kjennerud, Ted; Torvik, Fartein Ask.
Genetically Informative Mediation Modeling Applied to Stressors and Personality-Disorder Traits in Etiology of Alcohol Use Disorder. Behavior Genetics 2019 ;Volume 49.(1) p. 11-23
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9 Torvik, Fartein Ask; Rosenström, Tom Henrik; Gustavson, Kristin; Ystrøm, Eivind; Kendler, Kenneth S.; Bramness, Jørgen Gustav; Czajkowski, Nikolai Olavi; Reichborn-Kjennerud, Ted.
Explaining the association between anxiety disorders and alcohol use disorder: A twin study. Depression and Anxiety 2019 ;Volume 36.(6) p. 522-532
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10 Ulset, Vidar; Czajkowski, Nikolai Olavi; Kraft, Brage; Kraft, Pål; Wikenius, Ellen; Kleppestø, Thomas Haarklau; Bekkhus, Mona.
Are unpopular children more likely to get sick? Longitudinal links between popularity and infectious diseases in early childhood. PLOS ONE 2019 ;Volume 14.(9) p. 1-14
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11 Waraan, Luxsiya; Rognli, Erling W.; Mehlum, Lars; Czajkowski, Nikolai Olavi; Villabø, Marianne.
The efficacy of psychotherapy for suicidal ideation in youth. International Suicide research Summit; 2019-10-26 - 2019-10-30
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2018
12 Czajkowski, Nikolai Olavi; Aggen, Steven H.; Krueger, Robert F; Kendler, Kenneth S.; Neale, Michael C.; Knudsen, Gun Peggy; Gillespie, Nathan A.; Røysamb, Espen; Tambs, Kristian; Reichborn-Kjennerud, Ted.
A Twin Study of Normative Personality and DSM-IV Personality Disorder Criterion Counts: Evidence for Separate Genetic Influences. American Journal of Psychiatry 2018 ;Volume 175.(7) p. 649-656
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13 Eilertsen, Espen Moen; Hannigan, Laurie John; McAdams, Tom A.; Rijsdijk, Fruhling; Czajkowski, Nikolai Olavi; Reichborn-Kjennerud, Ted; Ystrøm, Eivind; Gjerde, Line C..
Parental prenatal depression and offspring ADHD: a genetically informed intergenerational study. Behavior Genetics 2018 p. 469-469
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14 Eilertsen, Espen Moen; Hannigan, Laurie John; Mcadams, Tom; Rijsdijk, Fruhling; Czajkowski, Nikolai Olavi; Reichborn-Kjennerud, Ted; Ystrøm, Eivind; Gjerde, Line C..
Parental prenatal depression and offspring ADHD: A genetically informed intergenerational study. 48th Annual Meeting of the Behavior Genetics Association; 2018-06-20 - 2018-06-23
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15 Fu, Susie; Czajkowski, Nikolai Olavi; Torgalsbøen, Anne-Kari.
Cognitive improvement in first-episode schizophrenia and healthy controls: A 6-year multi-assessment follow-up study. Psychiatry Research 2018 ;Volume 267. p. 319-326
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16 Gillespie, Nathan A.; Aggen, Steven H.; Gentry, Amanda E.; Neale, Michael Churton; Knudsen, Gun Peggy S.; Krueger, Robert Frederick; South, Susan Carol; Czajkowski, Nikolai Olavi; Nesvåg, Ragnar; Ystrøm, Eivind; Rosenström, Tom Henrik; Torvik, Fartein Ask; Reichborn-Kjennerud, Ted; Kendler, Kenneth Seedman.
Testing Genetic and Environmental Associations Between Personality Disorders and Cocaine Use: A Population-Based Twin Study. Twin Research and Human Genetics 2018 ;Volume 21.(1) p. 24-32
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17 Gillespie, Nathan A.; Aggen, Steven H.; Neale, Michael C.; Knudsen, Gun Peggy S.; Krueger, Robert F.; South, Susan C.; Czajkowski, Nikolai Olavi; Nesvåg, Ragnar; Ystrøm, Eivind; Kendler, Kenneth S.; Reichborn-Kjennerud, Ted.
Associations between personality disorders and cannabis use and cannabis use disorder: a populationā€based twin study. Addiction 2018 ;Volume 113.(8) p. 1488-1498
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18 Knutsen, Marie Lindebø; Czajkowski, Nikolai Olavi; Ormhaug, Silje Mørup.
Changes in posttraumatic stress symptoms, cognitions, and depression during treatment of traumatized youth. Behaviour Research and Therapy 2018 ;Volume 111. p. 119-126
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19 Rosenström, Tom Henrik; Gjerde, Line C.; Krueger, Robert Frederick; Aggen, Steven H.; Czajkowski, Nikolai Olavi; Gillespie, Nathan A.; Kendler, Kenneth S.; Reichborn-Kjennerud, Ted; Torvik, Fartein Ask; Ystrøm, Eivind.
Joint factorial structure of psychopathology and personality. Psychological Medicine 2018 p. -
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20 Rosenström, Tom Henrik; Torvik, Fartein Ask; Ystrøm, Eivind; Czajkowski, Nikolai Olavi; Gillespie, Nathan A.; Aggen, Steven H.; Krueger, Robert F; Kendler, Kenneth S.; Reichborn-Kjennerud, Ted.
Prediction of alcohol use disorder using personality disorder traits: a twin study. Addiction 2018 ;Volume 113.(1) p. 15-24
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21 Røysamb, Espen; Nes, Ragnhild Bang; Czajkowski, Nikolai Olavi; Vassend, Olav.
Genetics, personality and wellbeing. A twin study of traits, facets and life satisfaction. Scientific Reports 2018 ;Volume 8. p. -
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22 Torgalsbøen, Anne-Kari; Fu, Susie; Czajkowski, Nikolai Olavi.
Resilience trajectories to full recovery in first-episode schizophrenia. European psychiatry 2018 ;Volume 52. p. 54-60
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23 Vassend, Olav; Røysamb, Espen; Nielsen, Christopher Sivert; Czajkowski, Nikolai Olavi.
Fatigue symptoms in relation to neuroticism, anxiety-depression, and musculoskeletal pain. A longitudinal twin study. PLOS ONE 2018 ;Volume 13.(6) p. -
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24 Waraan, Luxsiya; Rognli, Erling W.; Mehlum, Lars; Czajkowski, Nikolai Olavi; Villabø, Marianne.
The association between Attachment Style to Father and Suicidal Ideation in Adolescents with Depression.. 4th International Congress of Clinical and Health Psychology on Children and Adolescents; 2018-11-15 - 2018-11-17
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25 Welander-Vatn, Audun; Torvik, Fartein Ask; Czajkowski, Nikolai Olavi; Kendler, Kenneth S; Reichborn-Kjennerud, Ted; Knudsen, Gun Peggy S.; Ystrøm, Eivind.
Relationships Among Avoidant Personality Disorder, Social Anxiety Disorder, and Normative Personality Traits: A Twin Study. Journal of Personality Disorders 2018 ;Volume 33.(3) p. 289-309
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26 Øie, Merete Glenne; Hovik, Kjell Tore; Andersen, Per Normann; Czajkowski, Nikolai Olavi; Skogli, Erik Winther.
Gender differences in the relationship between changes in ADHD symptoms, executive function, and self- and parent-report depression symptoms in boys and girls with ADHD: A two-year follow-up study. Journal of Attention Disorders 2018 ;Volume 22.(5) p. 446-459
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2017
27 Bang Nes, Ragnhild; Czajkowski, Nikolai Olavi; Røysamb, Espen; Vassend, Olav.
Components and sources of well-being and ill-being: A twin study. 47th Behavior Genetics Annual Meeting; 2017-06-28 - 2017-07-01
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28 Czajkowski, Nikolai Olavi; Bang Nes, Ragnhild; Vassend, Olav; Røysamb, Espen.
Effects of somatic and mental illness on subjective well-being. A discordant twin analysis. 47th Behavior Genetics Annual Meeting; 2017-06-28 - 2017-07-01
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29 Eilertsen, Espen Moen; Gjerde, Line C.; Reichborn-Kjennerud, Ted; Ørstavik, Ragnhild; Knudsen, Gun Peggy; Stoltenberg, Camilla; Czajkowski, Nikolai Olavi; Røysamb, Espen; Kendler, Kenneth S; Ystrøm, Eivind.
Maternal alcohol use during pregnancy and offspring attention-deficit hyperactivity disorder (ADHD): a prospective sibling control study. International Journal of Epidemiology 2017 ;Volume 46.(5) p. 1633-1640
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30 Fu, Susie; Czajkowski, Nikolai Olavi; Rund, Bjørn Rishovd; Torgalsbøen, Anne-Kari.
The relationship between level of cognitive impairments and functional outcome trajectories in first-episode schizophrenia. Schizophrenia Research 2017 ;Volume 190. p. 144-149
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31 H. Kleppestø, Thomas; Czajkowski, Nikolai Olavi; Vassend, Olav; Røysamb, Espen; R. Kunst, Jonas; Thomsen, Lotte.
Preferring domination or egalitarianism: Genetic and environmental structure of Social Dominance Orientation. 47th Behavior Genetics Annual Meeting; 2017-06-28 - 2017-07-01
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32 Kendler, Kenneth S; Aggen, Steven H; Gillespie, Nathan; Neale, Michael C; Knudsen, Gun Peggy; Krueger, Robert F; Czajkowski, Nikolai Olavi; Ystrøm, Eivind; Reichborn-Kjennerud, Ted.
The Genetic and Environmental Sources of Resemblance Between Normative Personality and Personality Disorder Traits. Journal of Personality Disorders 2017 ;Volume 31.(2) p. 193-207
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33 Long, Elizabeth C.; Aggen, Steven H.; Neale, Michael Churton; Knudsen, Gun Peggy; Krueger, Robert Frederick; South, Susan Carol; Czajkowski, Nikolai Olavi; Nesvåg, Ragnar; Ystrøm, Eivind; Torvik, Fartein Ask; Kendler, Kenneth Seedman; Gillespie, Nathan A.; Reichborn-Kjennerud, Ted.
The association between personality disorders with alcohol use and misuse: A population-based twin study. Drug and Alcohol Dependence 2017 ;Volume 174. p. 171-180
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34 Reichborn-Kjennerud, Ted; Krueger, R F; Ystrøm, Eivind; Torvik, Fartein Ask; Rosenström, Tom Henrik; Aggen, S H; South, S C; Neale, M C; Knudsen, Gun Peggy; Kendler, K S; Czajkowski, Nikolai Olavi.
Do DSM-5 Section II personality disorders and Section III personality trait domains reflect the same genetic and environmental risk factors?. Psychological Medicine 2017 ;Volume 47.(12) p. 2205-2215
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35 Rosenström, Tom Henrik; Czajkowski, Nikolai Olavi; Ystrøm, Eivind; Krueger, RF; Aggen, Steven H.; Gillespie, Nathan A.; Eilertsen, Espen Moen; Reichborn, Ted; Torvik, Fartein Ask.
Stressful life events, antisocial and borderline personality traits, and alcohol use disorder: a genetically informative mediation study.. 47th Behavior Genetics Annual Meeting; 2017-06-28 - 2017-07-01
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36 Rosenström, Tom Henrik; Ystrøm, Eivind; Torvik, Fartein Ask; Czajkowski, Nikolai Olavi; Gillespie, Nathan A.; Aggen, Steven H.; Krueger, Robert F.; Kendler, Kenneth S.; Reichborn-Kjennerud, Ted.
Genetic and Environmental Structure of DSM-IV Criteria for Antisocial Personality Disorder: A Twin Study. Behavior Genetics 2017 ;Volume 47.(3) p. 265-277
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37 Røysamb, Espen; Bang Nes, Ragnhild; Czajkowski, Nikolai Olavi; Vassend, Olav.
Anxiety, depression and life satisfaction after midlife. A twin study across 20 years. 47th Behavior Genetics Annual Meeting; 2017-06-28 - 2017-07-01
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38 South, Susan C; Krueger, Robert F; Knudsen, Gun Peggy; Ystrøm, Eivind; Czajkowski, Nikolai Olavi; Aggen, Steven H; Neale, Michael C; Gillespie, Nathan A; Kendler, Kenneth S; Reichborn-Kjennerud, Ted.
A Population Based Twin Study of DSM–5 Maladaptive Personality Domains. Personality Disorders: Theory, Research, and Treatment 2017 ;Volume 8.(4) p. 366-375
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39 Tornare, Elise; Cuisinier, F.; Czajkowski, Nikolai Olavi; Pons, Francisco.
Impact of Induced Joy on Literacy in Children: Does the Nature of the Task Make a Difference?. Cognition & Emotion 2017 ;Volume 31.(3) p. 500-510
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40 Torvik, Fartein Ask; Rosenström, Tom Henrik; Czajkowski, Nikolai Olavi; long, elizabeth; Gillespie, Nathan A.; Reichborn-Kjennerud, Ted.
Results from a longitudinal twin study combining diagnostic interviews and registry data on personality, mental disorders, and substance use. 47th Behavior Genetics Annual Meeting, Oslo, Norway; 2017-06-28 - 2017-07-01
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41 Torvik, Fartein Ask; Rosenström, Tom Henrik; Ystrøm, Eivind; Tambs, Kristian; Røysamb, Espen; Czajkowski, Nikolai Olavi; Gillespie, Nathan; Knudsen, Gun Peggy; Kendler, Kenneth S.; Reichborn-Kjennerud, Ted.
Stability and change in etiological factors for alcohol use disorder and major depression. Journal of Abnormal Psychology 2017 ;Volume 126.(6) p. 812-822
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42 Vassend, Olav; Nielsen, Christopher Sivert; Røysamb, Espen; Czajkowski, Nikolai Olavi.
Fatigue symptoms in relation to neuroticism, anxiety-depression, and musculoskeletal pain. A longitudinal study. 47th Behavior Genetics Annual Meeting; 2017-06-28 - 2017-07-01
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43 Vassend, Olav; Røysamb, Espen; Nielsen, Christopher Sivert; Czajkowski, Nikolai Olavi.
Musculoskeletal Complaints, Anxiety–Depression Symptoms, and Neuroticism: A Study of Middle-Aged Twins. Health Psychology 2017 ;Volume 36.(8) p. 729-739
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2016
44 Bekkhus, Mona; Brendgen, Mara; Czajkowski, Nikolai Olavi; Vitaro, Frank; Dionne, Ginette; Boivin, Michel.
Associations between Sibling Relationship Quality and Friendship Quality in Early Adolescence: Looking at the Case of Twins. Twin Research and Human Genetics 2016 ;Volume 19.(2) p. 125-135
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45 Gjerde, Line C.; Torvik, Fartein Ask; Østby, Kristian Amundsen; Knudsen, Gun Peggy; Czajkowski, Nikolai Olavi; Reichborn-Kjennerud, Ted; Ørstavik, Ragnhild.
Advantages of linking national registries with twin registries for epidemiological research. Norsk Epidemiologi 2016 ;Volume 26.(1-2) p. 83-92
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46 Nilsen, Thomas Sevenius; Brandt, Ingunn; Czajkowski, Nikolai Olavi; Knudsen, Gun Peggy; Magnus, Per; Reichborn-Kjennerud, Ted; Tambs, Kristian; Harris, Jennifer; Ørstavik, Ragnhild.
The Norwegian twin registry. Norsk Epidemiologi 2016 ;Volume 26.(1-2) p. 19-27
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47 Sælid, Gry Anette; Czajkowski, Nikolai Olavi; Holte, Arne; Tambs, Kristian; Aarø, Leif Edvard.
Coping With Strain (CWS) course – its effects on depressive symptoms: A four-year longitudinal randomized controlled trial. Scandinavian Journal of Psychology 2016 ;Volume 57.(4) p. 321-327
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48 Sælid, Gry Anette; Czajkowski, Nikolai Olavi; Holte, Arne; Tambs, Kristian; Aarø, Leif Edvard.
Positive mental health effects of the Coping With Strain (CWS) course on employees: a four-year longitudinal randomized controlled trial. International Journal of Mental Health Promotion 2016 ;Volume 18.(3) p. 158-175
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49 Torgalsbøen, Anne-Kari; Fu, Susie; Czajkowski, Nikolai Olavi.
Resilience trajectories in fully recovered first-episode psychosis patients. SIRS; 2016-04-02 - 2016-04-06
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50 Tornare, Elise; Czajkowski, Nikolai Olavi; Pons, Francisco.
Impact of emotion on children´s performance in a dictation task: Evidence for a direct effect of the emotional content.. Annee Psychologique 2016 ;Volume 116.(2) p. 171-201
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