Nikolai Olavi Czajkowski

Førsteamanuensis - Psykologisk institutt
Bilde av Nikolai Olavi Czajkowski
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Telefon +47-22845163
Rom S03-07
Treffetider Etter avtale
Brukernavn
Besøksadresse Forskningsveien 3A Harald Schjelderups hus 0373 Oslo
Postadresse Postboks 1094 Blindern 0317 OSLO
Emneord: Klinisk psykologi og personlighetspsykologi, Metode, Avdeling for metode arbeids- kultur- og sosialpsykologi

Publikasjoner

  • 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 (2017). Maternal alcohol use during pregnancy and offspring attention-deficit hyperactivity disorder (ADHD): a prospective sibling control study. International Journal of Epidemiology.  ISSN 0300-5771. . doi: 10.1093/ije/dyx067
  • Fu, Susie; Czajkowski, Nikolai Olavi; Rund, Bjørn Rishovd & Torgalsbøen, Anne-Kari (2017). The relationship between level of cognitive impairments and functional outcome trajectories in first-episode schizophrenia. Schizophrenia Research.  ISSN 0920-9964. . doi: http://dx.doi.org/10.1016/j.schres.2017.03.002
  • 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 (2017). The Genetic and Environmental Sources of Resemblance Between Normative Personality and Personality Disorder Traits. Journal of Personality Disorders.  ISSN 0885-579X.  31(2), s 193- 207 . doi: 10.1521/pedi_2016_30_251
  • 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 (2017). The association between personality disorders with alcohol use and misuse: A population-based twin study. Drug And Alcohol Dependence.  ISSN 0376-8716.  174, s 171- 180 . doi: 10.1016/j.drugalcdep.2017.01.022
  • 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 (2017). Do DSM-5 Section II personality disorders and Section III personality trait domains reflect the same genetic and environmental risk factors?. Psychological Medicine.  ISSN 0033-2917. . doi: 10.1017/S0033291717000824
  • Rosenström, Tom; Torvik, Fartein Ask; Ystrøm, Eivind; Czajkowski, Nikolai Olavi; Gillespie, Nathan A.; Aggen, Steven H.; Krueger, Robert F; Kendler, Kenneth S. & Reichborn-Kjennerud, Ted (2017). Prediction of alcohol use disorder using personality disorder traits: a twin study. Addiction.  ISSN 0965-2140. . doi: 10.1111/add.13951
  • Rosenström, Tom; Ystrøm, Eivind; Torvik, Fartein Ask; Czajkowski, Nikolai Olavi; Gillespie, Nathan A.; Aggen, Steven H.; Krueger, Robert F.; Kendler, Kenneth S. & Reichborn-Kjennerud, Ted (2017). Genetic and Environmental Structure of DSM-IV Criteria for Antisocial Personality Disorder: A Twin Study. Behavior Genetics.  ISSN 0001-8244.  47(3), s 265- 277 . doi: 10.1007/s10519-016-9833-z
  • Tornare, Elise; Cuisinier, F.; Czajkowski, Nikolai Olavi & Pons, Francisco (2017). Impact of Induced Joy on Literacy in Children: Does the Nature of the Task Make a Difference?. Cognition & Emotion.  ISSN 0269-9931.  31(3), s 500- 510 . doi: 10.1080/02699931.2015.1132682
  • Torvik, Fartein Ask; Rosenström, Tom Henrik; Ystrøm, Eivind; Tambs, Kristian; Røysamb, Espen; Czajkowski, Nikolai Olavi; Gillespie, Nathan; Knudsen, Gun Peggy & Reichborn-Kjennerud, Ted (2017). Stability and Change in Etiological Factors for Alcohol Use Disorder and Major Depression. Journal of Abnormal Psychology.  ISSN 0021-843X. . doi: 10.1037/abn0000280
  • Vassend, Olav; Røysamb, Espen; Nielsen, Christopher Sivert & Czajkowski, Nikolai Olavi (2017). Musculoskeletal Complaints, Anxiety–Depression Symptoms, and Neuroticism: A Study of Middle-Aged Twins. Health Psychology.  ISSN 0278-6133. . doi: 10.1037/hea0000484
  • Bekkhus, Mona; Brendgen, Mara; Czajkowski, Nikolai Olavi; Vitaro, Frank; Dionne, Ginette & Boivin, Michel (2016). Associations between Sibling Relationship Quality and Friendship Quality in Early Adolescence: Looking at the Case of Twins. Twin Research and Human Genetics.  ISSN 1832-4274.  19(2), s 125- 135 . doi: 10.1017/thg.2016.9
  • Gjerde, Line C.; Torvik, Fartein Ask; Østby, Kristian Amundsen; Knudsen, Gun Peggy; Czajkowski, Nikolai Olavi; Reichborn-Kjennerud, Ted & Ørstavik, Ragnhild (2016). Advantages of linking national registries with twin registries for epidemiological research. Norsk Epidemiologi.  ISSN 0803-2491.  26(1-2), s 83- 92 . doi: 10.5324/nje.v26i1-2.2020
  • Nilsen, Thomas Sevenius; Brandt, Ingunn; Czajkowski, Nikolai Olavi; Knudsen, Gun Peggy; Magnus, Per; Reichborn-Kjennerud, Ted; Tambs, Kristian; Harris, Jennifer & Ørstavik, Ragnhild (2016). The Norwegian twin registry. Norsk Epidemiologi.  ISSN 0803-2491.  26(1-2), s 19- 27 . doi: 10.5324/nje.v26i1-2.2012 Fulltekst i vitenarkiv
  • 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 (2016). A Population Based Twin Study of DSM–5 Maladaptive Personality Domains. Personality Disorders: Theory, Research, and Treatment.  ISSN 1949-2715. . doi: 10.1037/per0000220
  • Sælid, Gry Anette; Czajkowski, Nikolai Olavi; Holte, Arne; Tambs, Kristian & Aarø, Leif Edvard (2016). Coping With Strain (CWS) course – its effects on depressive symptoms: A four-year longitudinal randomized controlled trial. Scandinavian Journal of Psychology.  ISSN 0036-5564.  57(4), s 321- 327 . doi: 10.1111/sjop.12289
  • Sælid, Gry Anette; Czajkowski, Nikolai Olavi; Holte, Arne; Tambs, Kristian & Aarø, Leif Edvard (2016). 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.  ISSN 1462-3730.  18(3), s 158- 175 . doi: 10.1080/14623730.2016.1196231
  • Tornare, Elise; Czajkowski, Nikolai Olavi & Pons, Francisco (2016). Impact of emotion on children´s performance in a dictation task: Evidence for a direct effect of the emotional content.. Annee Psychologique.  ISSN 0003-5033.  116(2), s 171- 201
  • Torvik, Fartein Ask; Vatn, Audun Svendsen; Ystrøm, Eivind; Knudsen, Gun Peggy; Czajkowski, Nikolai Olavi; Kendler, Kenneth S. & Reichborn-Kjennerud, Ted (2016). Longitudinal Associations Between Social Anxiety Disorder and Avoidant Personality Disorder: A Twin Study. Journal of Abnormal Psychology.  ISSN 0021-843X.  125(1), s 114- 124 . doi: 10.1037/abn0000124
  • Vassend, Olav; Orvik, Benedicte Humborstad; Czajkowski, Nikolai Olavi & Røysamb, Espen (2016). Facets of neuroticism and musculoskeletal symptoms. A study of middle-aged twins. Norsk Epidemiologi.  ISSN 0803-2491.  26(1-2), s 47- 56 . doi: 10.5324/nje.v26i1-2.2015
  • Øie, Merete Glenne; Hovik, Kjell Tore; Andersen, Per Normann; Czajkowski, Nikolai Olavi & Skogli, Erik Winther (2016). 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.  ISSN 1087-0547.  s 1- 14 . doi: 10.1177/1087054716664407
  • Østby, Kristian Amundsen; Czajkowski, Nikolai Olavi; Knudsen, Gun Peggy; Ystrøm, Eivind; Gjerde, Line C.; Kendler, Kenneth S.; Ørstavik, Ragnhild & Reichborn-Kjennerud, Ted (2016). Does low alcohol use increase the risk of sickness absence? A discordant twin study . BMC Public Health.  ISSN 1471-2458.  16 . doi: 10.1186/s12889-016-3502-2 Fulltekst i vitenarkiv
  • Gjerde, Line C.; Czajkowski, Nikolai Olavi; Røysamb, Espen; Ystrøm, Eivind; Tambs, Kristian; Aggen, Steven H.; Ørstavik, Ragnhild; Kendler, Kenneth S.; Reichborn-Kjennerud, Ted & Knudsen, Gun Peggy (2015). A longitudinal, population-based twin study of avoidant and obsessive-compulsive personality disorder traits from early to middle adulthood. Psychological Medicine.  ISSN 0033-2917.  45(16), s 3539- 3548 . doi: 10.1017/S0033291715001440
  • Kendler, Kenneth S.; Aggen, SH; Neale, MC; Knudsen, Gun Peggy; Krueger, Robert F; Tambs, Kristian; Czajkowski, Nikolai Olavi; Ystrøm, Eivind; Ørstavik, Ragnhild & Reichborn-Kjennerud, Ted (2015). A longitudinal twin study of cluster A personality disorders. Psychological Medicine.  ISSN 0033-2917.  45(7), s 1531- 1538 . doi: 10.1017/S0033291714002669
  • Reichborn-Kjennerud, Ted; Czajkowski, Nikolai Olavi; Ystrøm, Eivind; Ørstavik, Ragnhild; Aggen, Steven H.; Tambs, Kristian; Torgersen, Svenn; Neale, Michael C.; Røysamb, Espen; Krueger, Robert F.; Knudsen, Gun Peggy & Kendler, Kenneth S. (2015). A longitudinal twin study of borderline and antisocial personality disorder traits in early to middle adulthood. Psychological Medicine.  ISSN 0033-2917.  45(14), s 3121- 3131 . doi: 10.1017/S0033291715001117
  • Torgalsbøen, Anne-Kari; Mohn, Christine; Czajkowski, Nikolai Olavi & Rund, Bjørn Rishovd (2015). Relationship between neurocognition and functional recovery in first-episode schizophrenia: Results from the second year of the Oslo multi-follow-up study. Psychiatry Research.  ISSN 0165-1781.  227(2-3), s 185- 191 . doi: 10.1016/j.psychres.2015.03.037
  • Tornare, Elise; Czajkowski, Nikolai Olavi & Pons, Francisco (2015). Children's emotions in math problem solving situations: Contributions of self-concept, metacognitive experiences, and performance. Learning and Instruction.  ISSN 0959-4752.  39, s 88- 96 . doi: 10.1016/j.learninstruc.2015.05.011
  • Torvik, Fartein Ask; Ystrøm, Eivind; Czajkowski, Nikolai Olavi; Tambs, Kristian; Røysamb, Espen; Ørstavik, Ragnhild; Knudsen, Gun Peggy; Kendler, Kenneth S & Reichborn-Kjennerud, Ted (2015). Socioeconomic status and sick leave granted for mental and somatic disorders: a prospective study of young adult twins . BMC Public Health.  ISSN 1471-2458.  15:134 . doi: 10.1186/s12889-015-1457-3 Fulltekst i vitenarkiv
  • Gjerde, Line Cecilie; Røysamb, Espen; Czajkowski, Nikolai Olavi; Knudsen, Gun Peggy; Østby, Kristian Amundsen; Tambs, Kristian; Kendler, Kenneth S; Reichborn-Kjennerud, Ted & Ørstavik, Ragnhild (2014). Personality disorders and long-term sick leave: A population-based study of young adult norwegian twins. Twin Research and Human Genetics.  ISSN 1832-4274.  17(1), s 1- 9 . doi: 10.1017/thg.2013.90
  • Torvik, Fartein Ask; Gjerde, Line Cecilie; Røysamb, Espen; Tambs, Kristian; Kendler, Kenneth S.; Czajkowski, Nikolai Olavi; Knudsen, Gun Peggy; Reichborn-Kjennerud, Ted & Ørstavik, Ragnhild (2014). Genetic and environmental contributions to the relationship between internalizing disorders and sick leave granted for mental and somatic disorders. Twin Research and Human Genetics.  ISSN 1832-4274.  17(4), s 225- 235 . doi: 10.1017/thg.2014.27
  • Ørstavik, Ragnhild; Czajkowski, Nikolai Olavi; Røysamb, Espen; Knudsen, Gun Peggy; Tambs, Kristian & Reichborn-Kjennerud, Ted (2014). Sex differences in genetic and environmental influences on educational attainment and income. Twin Research and Human Genetics.  ISSN 1832-4274.  17(6), s 516- 525 . doi: 10.1017/thg.2014.68
  • Østby, Kristian Amundsen; Czajkowski, Nikolai; Knudsen, Gun Peggy; Ystrøm, Eivind; Gjerde, Line C.; Kendler, Kenneth S.; Ørstavik, Ragnhild & Reichborn-Kjennerud, Ted (2014). Personality disorders are important risk factors for disability pensioning. Social Psychiatry and Psychiatric Epidemiology.  ISSN 0933-7954.  49(12), s 2003- 2011 . doi: 10.1007/s00127-014-0878-0
  • Gjerde, Line Cecilie; Knudsen, Gun Peggy; Czajkowski, Nikolai Olavi; Gillespie, Nathan; Aggen, Steven H; Røysamb, Espen; Reichborn-Kjennerud, Ted; Tambs, Kristian; Kendler, Kenneth S & Ørstavik, Ragnhild (2013). Genetic and Environmental Contributions to Long-Term Sick Leave and Disability Pension: A Population-Based Study of Young Adult Norwegian Twins. Twin Research and Human Genetics.  ISSN 1832-4274.  16(4), s 759- 766 . doi: 10.1017/thg.2013.36
  • Nes, Ragnhild Bang; Czajkowski, Nikolai Olavi; Røysamb, Espen; Ørstavik, Ragnhild; Tambs, Kristian & Reichborn-Kjennerud, Ted (2013). Major depression and life satisfaction: A population-based twin study. Journal of Affective Disorders.  ISSN 0165-0327.  144(1-2), s 51- 58 . doi: 10.1016/j.jad.2012.05.060
  • Reichborn-Kjennerud, Ted; Ystrøm, Eivind; Neale, Michael C; Aggen, Steven H; Mazzeo, Suzanne E; Knudsen, Gun Peggy; Tambs, Kristian; Czajkowski, Nikolai Olavi & Kendler, Kenneth S (2013). Structure of genetic and environmental risk factors for symptoms of DSM-IV borderline personality disorder. JAMA psychiatry.  ISSN 2168-622X.  70(11), s 1206- 1214 . doi: 10.1001/jamapsychiatry.2013.1944
  • Gjerde, Line Cecilie; Czajkowski, Nikolai Olavi; Røysamb, Espen; Ørstavik, Ragnhild; Knudsen, Gun Peggy; Østby, Kristian Roald Amundsen; Torgersen, Svenn; Myers, J; Kendler, KS & Reichborn-Kjennerud, Ted (2012). The heritability of avoidant and dependent personality disorder assessed by personal interview and questionnaire. Acta Psychiatrica Scandinavica.  ISSN 0001-690X.  126(6), s 448- 457 . doi: 10.1111/j.1600-0447.2012.01862.x
  • Kvestad, Ellen; Czajkowski, Nikolai Olavi; Krog, Norun Hjertager; Engdahl, Bo Lars & Tambs, Kristian (2012). Heritability of Hearing Loss. Epidemiology.  ISSN 1044-3983.  23(2), s 328- 331 . doi: 10.1097/EDE.0b013e318245996e
  • Ørstavik, Ragnhild; Kendler, Kenneth S.; Røysamb, Espen; Czajkowski, Nikolai Olavi; Tambs, Kristian & Reichborn-Kjennerud, Ted (2012). Genetic and environmental contributions to the co-occurence of depressive personality disorder and DSM-IV personality disorders. Journal of Personality Disorders.  ISSN 0885-579X.  26(3), s 435- 451 . doi: 10.1521/pedi.2012.26.3.435
  • Czajkowski, Nikolai Olavi; Kendler, Kenneth S.; Tambs, Kristian; Røysamb, Espen & Reichborn-Kjennerud, Ted (2011). The structure of genetic and environmental risk factors for phobias in women. Psychological Medicine.  ISSN 0033-2917.  41(9), s 1987- 1995 . doi: 10.1017/S0033291710002436
  • Gjerde, Line Cecilie; Røysamb, Espen; Czajkowski, Nikolai Olavi; Reichborn-Kjennerud, Ted; Ørstavik, Ragnhild; Kendler, Kenneth S & Tambs, Kristian (2011). Strong Genetic Correlation Between Interview-Assessed Internalizing Disorders and a Brief Self-Report Symptom Scale. Twin Research and Human Genetics.  ISSN 1832-4274.  14(1), s 64- 72 . doi: 10.1375/twin.14.1.64
  • Czajkowski, Nikolai; Røysamb, Espen; Reichborn-Kjennerud, Ted & Tambs, Kristian (2010). A population based family study of symptoms of anxiety and depression The HUNT study. Journal of Affective Disorders.  ISSN 0165-0327.  125(1-3), s 355- 360 . doi: 10.1016/j.jad.2010.01.006
  • Kvestad, Ellen; Czajkowski, Nikolai; Engdahl, Bo Lars; Hoffman, Howard J & Tambs, Kristian (2010). Low heritability of tinnitus. Results from the second Nord-Trøndelag Health Study. Archives of Otolaryngology - Head & Neck Surgery.  ISSN 0886-4470.  136(2), s 178- 182
  • Nes, Ragnhild Bang; Czajkowski, Nikolai & Tambs, Kristian (2010). Family matters: happiness in nuclear families and twins. Behavior Genetics.  ISSN 0001-8244.  40(5), s 577- 590 . doi: 10.1007/s10519-010-9365-x
  • Nes, Ragnhild Bang; Røysamb, Espen; Harris, Jennifer; Czajkowski, Nikolai & Tambs, Kristian (2010). Mates and Marriage Matter: Genetic and Environmental Influences on Subjective Wellbeing Across Marital Status. Twin Research and Human Genetics.  ISSN 1832-4274.  13(4), s 312- 321
  • Reichborn-Kjennerud, Ted; Czajkowski, Nikolai; Røysamb, Espen; Ørstavik, Ragnhild Elise; Neale, Michael C; Torgersen, Svenn & Kendler, Kenneth S (2010). Major depression and dimensional representations of DSM-IV personality disorders: a population-based twin study. Psychological Medicine.  ISSN 0033-2917.  40(9), s 1475- 1484 . doi: 10.1017/S0033291709991954
  • Tambs, Kristian; Czajkowski, Nikolai; Røysamb, Espen; Neale, Michael C; Reichborn-Kjennerud, Ted; Aggen, Steven H; Harris, Jennifer; Ørstavik, Ragnhild Elise & Kendler, Kenneth S (2009). Structure of genetic and environmental risk factors for dimensional representations of DSM-IV anxiety disorders. British Journal of Psychiatry.  ISSN 0007-1250.  195(4), s 301- 307 . doi: 10.1192/bjp.bp.108.059485
  • Czajkowski, Nikolai; Kendler, Kenneth S; Jacobson, Kristen C; Tambs, Kristian; Røysamb, Espen & Reichborn-Kjennerud, Ted (2008). Passive-aggressive (negativistic) personality disorder: A population-based twin study. Journal of Personality Disorders.  ISSN 0885-579X.  22(1), s 109- 122
  • Kendler, Kenneth S; Aggen, Steven H; Czajkowski, Nikolai; Røysamb, Espen; Tambs, Kristian; Torgersen, Svenn; Neale, Michael C & Reichborn-Kjennerud, Ted (2008). The structure of genetic and environmental risk factors for DSM-IV personality disorders: a multivariate twin study. Archives of General Psychiatry.  ISSN 0003-990X.  65(12), s 1438- 1446
  • Nes, Ragnhild Bang; Czajkowski, Nikolai; Røysamb, Espen; Reichborn-Kjennerud, Ted & Tambs, Kristian (2008). Well-being and ill-being: shared environments, shared genes?. Journal of Positive Psychology.  ISSN 1743-9760.  3(4), s 253- 265 . doi: 10.1080/17439760802399323
  • Nielsen, Christopher Sivert; Stubhaug, Audun; Price, Donald D; Vassend, Olav; Czajkowski, Nikolai & Harris, Jennifer (2008). Individual differences in pain sensitivity: Genetic and environmental contributions. Pain.  ISSN 0304-3959.  136(1-2), s 21- 29 . doi: 10.1016/j.pain.2007.06.008
  • Torgersen, S; Czajkowski, Nikolai; Jacobson, K; Reichborn-Kjennerud, Ted; Røysamb, Espen; Neale, MC & Kendler, KS (2008). Dimensional representations of DSM-IV cluster B personality disorders in a population-based sample of Norwegian twins: a multivariate study. Psychological Medicine.  ISSN 0033-2917.  38(11), s 1617- 1625 . doi: 10.1017/S0033291708002924
  • Reichborn-Kjennerud, Ted; Czajkowski, Nikolai; Neale, Michael C.; Ørstavik, Ragnhild Elise; Torgersen, Svenn; Tambs, Kristian; Røysamb, Espen; Harris, Jennifer & Kendler, Kenneth S. (2007). Genetic and environmental influences on dimensional representations of DSM-IV cluster C personality disorders: a population-based multivariate twin study. Psychological Medicine.  ISSN 0033-2917.  37(5), s 645- 653 . doi: 10.1017/S0033291706009548
  • Reichborn-Kjennerud, Ted; Czajkowski, Nikolai; Torgersen, Svenn; Neale, Michael C.; Ørstavik, Ragnhild Elise; Tambs, Kristian & Kendler, Kenneth S. (2007). The relationship between avoidant personality disorder and social phobia: A population-based twin study. American Journal of Psychiatry.  ISSN 0002-953X.  164(11), s 1722- 1728 . doi: 10.1176/appi.ajp.2007.06101764
  • Ørstavik, Ragnhild Elise; Kendler, Kenneth S.; Czajkowski, Nikolai; Tambs, Kristian & Reichborn-Kjennerud, Ted (2007). Genetic and environmental contributions to depressive personality disorder in a population-based sample of Norwegian Twins. Journal of Affective Disorders.  ISSN 0165-0327.  99(1-3), s 181- 189 . doi: 10.1016/j.jad.2006.09.011
  • Ørstavik, Ragnhild Elise; Kendler, Kenneth S.; Czajkowski, Nikolai; Tambs, Kristian & Reichborn-Kjennerud, Ted (2007). The relationship between depressive personality disorder and major depressive disorder: A population-based twin study. American Journal of Psychiatry.  ISSN 0002-953X.  164(12), s 1866- 1872 . doi: 10.1176/appi.ajp.2007.07010045
  • Ørstavik, RE.; Kendler, Kenneth S.; Czajkowski, N; Tambs, Kristian & Reichborn-Kjennerud, Ted (2007). The relationship between depressive personality and major depressive disorder: a population-based twin study. American Journal of Psychiatry.  ISSN 0002-953X.  164(12), s 1866- 1872
  • Kendler, KS; Czajkowski, Nikolai; Tambs, Kristian; Torgersen, Svenn; Aggen, SH; Neale, Michael C. & Reichborn-Kjennerud, Ted (2006). Dimensional representations of DSM-IV Cluster A personality disorders in a population-based sample of Norwegian twins: a multivariate study. Psychological Medicine.  ISSN 0033-2917.  36(11), s 1583- 1591 . doi: 10.1017/S0033291706008609

Se alle arbeider i Cristin

  • Bang Nes, Ragnhild; Czajkowski, Nikolai Olavi; Røysamb, Espen & Vassend, Olav (2017). Components and sources of well-being and ill-being: A twin study.
  • Czajkowski, Nikolai Olavi; Bang Nes, Ragnhild; Vassend, Olav & Røysamb, Espen (2017). Effects of somatic and mental illness on subjective well-being. A discordant twin analysis.
  • H. Kleppestø, Thomas; Czajkowski, Nikolai Olavi; Vassend, Olav; Røysamb, Espen; R. Kunst, Jonas & Thomsen, Lotte (2017). Preferring domination or egalitarianism: Genetic and environmental structure of Social Dominance Orientation.
  • Rosenström, Tom Henrik; Czajkowski, Nikolai Olavi; Ystrøm, Eivind; Krueger, RF; Aggen, Steven H.; Gillespie, Nathan A.; Eilertsen, Espen Moen; Reichborn, Ted & Torvik, Fartein Ask (2017). Stressful life events, antisocial and borderline personality traits, and alcohol use disorder: a genetically informative mediation study..
  • Røysamb, Espen; Bang Nes, Ragnhild; Czajkowski, Nikolai Olavi & Vassend, Olav (2017). Anxiety, depression and life satisfaction after midlife. A twin study across 20 years.
  • Torvik, Fartein Ask; Rosenström, Tom Henrik; Czajkowski, Nikolai Olavi; long, elizabeth; Gillespie, Nathan A. & Reichborn-Kjennerud, Ted (2017). Results from a longitudinal twin study combining diagnostic interviews and registry data on personality, mental disorders, and substance use.
  • Vassend, Olav; Nielsen, Christopher Sivert; Røysamb, Espen & Czajkowski, Nikolai Olavi (2017). Fatigue symptoms in relation to neuroticism, anxiety-depression, and musculoskeletal pain. A longitudinal study.
  • Torgalsbøen, Anne-Kari; Fu, Susie & Czajkowski, Nikolai Olavi (2016). Resilience trajectories in fully recovered first-episode psychosis patients.
  • Czajkowski, Nikolai Olavi; Aggen, Steven H.; Knudsen, Gun Peggy; Krueger, Robert F; Neale, Michael C.; Ystrøm, Eivind; Nesvåg, Ragnar; Kendler, Kenneth S. & Reichborn-Kjennerud, Ted (2015). Modest overlap in the genetic influences underlying normal and abnormal personality .
  • Gjerde, Line C.; Czajkowski, Nikolai Olavi; Røysamb, Espen; Ystrøm, Eivind; Tambs, Kristian; Aggen, Steven H.; Ørstavik, Ragnhild; Kendler, Kenneth S.; Reichborn-Kjennerud, Ted & Knudsen, Gun Peggy (2015). Avoidant and obsessive-compulsive personality disorder traits from early to middle adulthood.
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  • Ystrøm, Eivind; Reichborn-Kjennerud, Ted; Gillespie, Nathan; Torvik, Fartein Ask; Czajkowski, Nikolai Olavi; Krueger, Robert F; Kendler, Kenneth S. & Nesvåg, Ragnar (2015). Psychosis, mania and personality disorders.
  • Villabø, Marianne Aalberg & Czajkowski, Nikolai Olavi (2014). The role of comorbidity in long-term outcome of CBT for anxiety disorders in children.
  • Villabø, Marianne Aalberg & Czajkowski, Nikolai Olavi (2014). Two-year naturalistic follow-up of children treated for anxiety disorders.
  • Gjerde, Line C.; Røysamb, Espen; Czajkowski, Nikolai Olavi; Knudsen, Gun Peggy; Østby, Kristian Amundsen; Tambs, Kristian; Kendler, Kenneth S.; Reichborn-Kjennerud, Ted & Ørstavik, Ragnhild (2013). Personality disorders and long-term sick leave - Preliminary results from a population-based study of young adult Norwegian twins.
  • Torvik, Fartein Ask; Gjerde, Line Cecilie; Knudsen, Gun Peggy; Reichborn-Kjennerud, Ted; ROYSAMB, ESPEN; Czajkowski, Nikolai Olavi; Tambs, Kristian & Ørstavik, Ragnhild (2013). Anxiety, depression and sick leave due to various diagnoses: A population-based study of young adult Norwegian twins. Behavior Genetics.  ISSN 0001-8244.  43(6), s 544- 544
  • Gjerde, Line C.; Knudsen, Gun Peggy; Czajkowski, Nikolai Olavi; Aggen, Steven H.; Røysamb, Espen; Reichborn-Kjennerud, Ted; Tambs, Kristian; Østby, Kristian Amundsen; Kendler, Kenneth S. & Ørstavik, Ragnhild (2012). Genetic and environmental contributions to long-term sick leave and disability pension - A population-based study of young adult Norwegian twins.
  • Knudsen, Gun Peggy; Tambs, Kristian; Hettema, Jack; Ørstavik, Ragnhild; Røysamb, Espen; Czajkowski, Nikolai; Kendler, Kenneth S. & Reichborn-Kjennerud, Ted (2012). The influence of personality disorders on longitudinal stability of anxiety. Behavior Genetics.  ISSN 0001-8244.  42(6), s 944- 944 . doi: 10.1007/s10519-012-9566-6
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  • Nes, Ragnhild Bang; Czajkowski, Nikolai & Tambs, Kristian (2011). The Nature and Nurture of Well-Being: Results from Studies with Norwegian Twins and Families.
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  • Kvestad, Ellen; Czajkowski, Nikolai; Engdahl, Bo Lars; Krog, Norun Hjertager & Tambs, Kristian (2008). Heritability of tinnitus.
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Publisert 31. jan. 2012 13:27 - Sist endret 4. nov. 2016 13:56