Browsing NTNU Open by Author "Bartz-Johannessen, Christoffer"

Now showing items 1-5 of 5

    • The association between cytokines and psychomotor speed in a spectrum of psychotic disorders: A longitudinal study 

      Larsen, Jeanette Brun; Reitan, Solveig Merete Klæbo; Løberg, Else-Marie; Rettenbacher, Maria; Bruserud, Øystein; Larsen, Tor Ketil; Anda, Liss Gøril; Bartz-Johannessen, Christoffer; Johnsen, Erik; Kroken, Rune Andreas (Peer reviewed; Journal article, 2021)
      Background In schizophrenia, impaired psychomotor speed is a common symptom predicting worse functional outcome. Inflammation causes changes in white matter integrity, which may lead to reduced psychomotor speed. Therefore, ...

    • Differential Effectiveness of Atypical Antipsychotics on Hallucinations: A Pragmatic Randomized Controlled Trial 

      Sinkeviciute, Igne; Hugdahl, Kenneth Jan; Bartz-Johannessen, Christoffer; Kroken, Rune Andreas; Løberg, Else-Marie; Kjelby, Eirik; Rettenbacher, maria; Joa, Inge; Reitan, Solveig Merete Klæbo; Alisauskiene, Renata; Fathian, Farivar; Johnsen, Erik (Peer reviewed; Journal article, 2021)
      Background Most studies investigating antipsychotic effectiveness report either total psychopathology or symptom cluster findings. Studies focusing on a separate symptom, such as hallucinations, a hallmark symptom in ...

    • Imminent and Short-Term Risk of Death by Suicide in 7,000 Acutely Admitted Psychiatric Inpatients 

      Fredriksen, Kristin Jørstad; Bartz-Johannessen, Christoffer; Schøyen, Helle Kristine; Vaaler, Arne; Walby, Fredrik A; Hegelstad, Wenche (Peer reviewed; Journal article, 2022)
      Objective: To prospectively investigate the predictive value of diagnosis, suicidal behavior, and subjectively experienced depressed mood for imminent risk of suicide death. Methods: This prospective study included a ...

    •  Sammenligning av ulike metoder innen ekstremverdistatistikk 

      Bartz-Johannessen, Christoffer (Master thesis, 2010)
      Hensikten med denne oppgaven har vært å se på ulike metoder som i dag benyttes for å predikere ekstremverdier i marin sammenheng. Fem ulike metoder er sammenlignet. Metodene er valgt på grunnlag av hvor mye de benyttes og ...

    • Operating room ventilation-Validation of reported data on 108 067 primary total hip arthroplasties in the Norwegian Arthroplasty Register 

      Langvatn, Håkon; Bartz-Johannessen, Christoffer; Schrama, Johannes Cornelis; Hallan, Geir; Furnes, Ove; Lingaas, Egil; Walenkamp, Geert; Engesæter, Lars B.; Dale, Håvard (Peer reviewed; Journal article, 2019)
      Rationale, aims, and objectives: The true effect of laminar airflow (LAF) systems on postoperative infection is disputed, partly due to uncertainty regarding the validity of ventilation data in register studies. The aim ...