Nikolai Olavi Czajkowski

Individual differences in pain sensitivity: Genetic and environmental contributions

Christopher Sivert Nielsen, Audun Stubhaug, Donald D. Price et al. · Pain · 2007 · 333 citations

Life Sciences, Genetics, Psychology +15

The Structure of Genetic and Environmental Risk Factors for DSM-IV Personality Disorders

Kenneth S. Kendler, Steven H. Aggen, Nikolai Olavi Czajkowski et al. · Archives of General Psychiatry · 2008 · 276 citations · Full text

Social Sciences, Psychiatry, Psychology +17

Dimensional representations of DSM-IV cluster B personality disorders in a population-based sample of Norwegian twins: a multivariate study

Svenn Torgersen, Nikolai Olavi Czajkowski, Kristen C. Jacobson et al. · Psychological Medicine · 2008 · 233 citations

Life Sciences, Psychiatry, Psychology +17

Bias from self selection and loss to follow-up in prospective cohort studies

Guido Biele, Kristin Gustavson, Nikolai Olavi Czajkowski et al. · European Journal of Epidemiology · 2019 · 158 citations

Public Health, Biostatistics, Clinical Epidemiology +13

Major depression and life satisfaction: A population-based twin study

Ragnhild Bang Nes, Nikolai Olavi Czajkowski, Espen Røysamb et al. · Journal of Affective Disorders · 2012 · 105 citations · Full text

Social Sciences, Psychiatry, Psychology +12