F80. COGNITIVE TRAJECTORIES OVER 6 YEARS IN FIRST-EPISODE SCHIZOPHRENIA AND HEALTHY CONTROLS – A PROSPECTIVE LONGITUDINAL MULTI-ASSESSMENT STUDY

av Fu, Susie, Czajkowski, Nikolai, Torgalsboen, Anne-Kari
I publikationen Schizophr Bull (2018)

Using informant discrepancies in report of parent–adolescent conflict to predict hopelessness in adolescent depression

av Rognli, Erling W, Aalberg, Marianne, Czajkowski, Nikolai Olavi
I publikationen Clin Child Psychol Psychiatry (2020)

Fatigue symptoms in relation to neuroticism, anxiety-depression, and musculoskeletal pain. A longitudinal twin study

av Vassend, Olav, Røysamb, Espen, Nielsen, Christopher Sivert, Czajkowski, Nikolai Olavi
I publikationen PLoS One (2018)

Genetics, personality and wellbeing. A twin study of traits, facets and life satisfaction

av Røysamb, Espen, Nes, Ragnhild B., Czajkowski, Nikolai O., Vassend, Olav
I publikationen Sci Rep (2018)

Does event centrality mediate the effect of peritraumatic reactions on post-traumatic growth in survivors of a terrorist attack?

av Glad, Kristin Alve, Czajkowski, Nikolai Olavi, Dyb, Grete, Hafstad, Gertrud S.
I publikationen Eur J Psychotraumatol (2020)

Moderation of treatment effects by parent-adolescent conflict in a randomised controlled trial of Attachment-Based Family Therapy for adolescent depression

av Rognli, Erling W., Waraan, Luxsiya, Czajkowski, Nikolai O., Aalberg, Marianne
I publikationen Scand J Child Adolesc Psychiatr Psychol (2020)

Low heritability of tinnitus: Results from the HUNT study

av Kvestad, Ellen, Czajkowski, Nikolai, Engdahl, Bo, Hoffman, Howard J., Tambs, Kristian
I publikationen Arch Otolaryngol Head Neck Surg (2010)

Effectiveness of attachment-based family therapy compared to treatment as usual for depressed adolescents in community mental health clinics

av Waraan, Luxsiya, Rognli, Erling W., Czajkowski, Nikolai Olavi, Aalberg, Marianne, Mehlum, Lars
I publikationen Child Adolesc Psychiatry Ment Health (2021)

Efficacy of attachment-based family therapy compared to treatment as usual for suicidal ideation in adolescents with MDD

av Waraan, Luxsiya, Rognli, Erling W, Czajkowski, Nikolai Olavi, Mehlum, Lars, Aalberg, Marianne
I publikationen Clin Child Psychol Psychiatry (2020)

Associations between insecure attachment styles to parents and suicidal ideation in adolescents with depression

av Waraan, Luxsiya, Mehlum, Lars, Rognli, Erling W., Czajkowski, Nikolai O., Aalberg, Marianne
I publikationen Scand J Child Adolesc Psychiatr Psychol (2021)

Conflict with Parents in Adolescent Depression: Associations with Parental Interpersonal Problems and Depressive Symptoms

av Rognli, Erling W., Waraan, Luxsiya, Czajkowski, Nikolai O., Solbakken, Ole André, Aalberg, Marianne
I publikationen Child Psychiatry Hum Dev (2020)

GENETIC AND ENVIRONMENTAL CONTRIBUTIONS TO THE CO-OCCURRENCE OF DEPRESSIVE PERSONALITY DISORDER AND DSM-IV PERSONALITY DISORDERS

av Ørstavik, Ragnhild E., Kendler, Kenneth S., Røysamb, Espen, Czajkowski, Nikolai, Tambs, Kristian, Reichborn-Kjennerud, Ted
Publicerad 2012

A Twin Study of Cigarette and Snus Initiation and Quantity of Use in Norwegian Adult Twins

av Kendler, Kenneth S., Aggen, Steven H., Gillespie, Nathan, Czajkowski, Nikolai, Ystrom, Eivind, Reichborn-Kjennerud, Ted
I publikationen Twin Res Hum Genet (2019)

Major Depression and Life satisfaction: A population-based twin study

av Nes, Ragnhild B., Czajkowski, Nikolai O., Røysamb, Espen, Ørstavik, Ragnhild E., Tambs, Kristian, Reichborn-Kjennerud, Ted
Publicerad 2012

The structure of genetic and environmental influences on normative personality, abnormal personality traits, and personality disorder symptoms

av Kendler, Kenneth S., Aggen, Steven H., Gillespie, Nathan, Krueger, Robert F., Czajkowski, Nikolai, Ystrom, Eivind, Reichborn-Kjennerud, T.
I publikationen Psychol Med (2019)

Strong Genetic Correlation Between Interview-Assessed Internalizing Disorders and a Brief Self-Report Symptom Scale

av Gjerde, Line C., Røysamb, Espen, Czajkowski, Nikolai, Reichborn-Kjennerud, Ted, Ørstavik, Ragnhild E., Kendler, Kenneth S., Tambs, Kristian
Publicerad 2011

Are unpopular children more likely to get sick? Longitudinal links between popularity and infectious diseases in early childhood

av Ulset, Vidar Sandsaunet, Czajkowski, Nikolai Olavi, Kraft, Brage, Kraft, Pål, Wikenius, Ellen, Kleppestø, Thomas Haarklau, Bekkhus, Mona
I publikationen PLoS One (2019)

Longitudinal associations between social anxiety disorder and avoidant personality disorder: A twin study

av Torvik, Fartein Ask, Welander-Vatn, Audun, Ystrom, Eivind, Knudsen, Gun Peggy, Czajkowski, Nikolai, Kendler, Kenneth S., Reichborn-Kjennerud, Ted
I publikationen J Abnorm Psychol (2015)

The Structure of Genetic and Environmental Risk Factors for DSM-IV Personality Disorders: A Multivariate Twin Study

av Kendler, Kenneth S., Aggen, Steven H., Czajkowski, Nikolai, Røysamb, Espen, Tambs, Kristian, Torgersen, Svenn, Neale, Michael C., Reichborn-Kjennerud, Ted
Publicerad 2008

Personality disorders are important risk factors for disability pensioning

av Østby, Kristian Amundsen, Czajkowski, Nikolai, Knudsen, Gun Peggy, Ystrom, Eivind, Gjerde, Line C., Kendler, Kenneth S., Ørstavik, Ragnhild E., Reichborn-Kjennerud, Ted
I publikationen Soc Psychiatry Psychiatr Epidemiol (2014)