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Self‐experience in the early phases of schizophrenia: 5‐year follow‐up of the Copenhagen Prodromal Study

Josef Parnas, Andrea Raballo, Peter Handest, Lennart Jansson, Anne Vollmer-Larsen, Ditte Sæbye

World Psychiatry October 1, 2011 DOI: 10.1002/j.2051-5545.2011.tb00057.x (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Prospective observational cohort study Peer reviewed
Sample size 151
Population First-admission patients in a putative state of beginning psychosis
Duration 60-month follow-up
Citations 175
Key findings Over 60 months, 37% of first-admission patients in a putative state of beginning psychosis converted to a schizophrenia spectrum diagnosis, and 25% of those with schizotypal disorder converted to schizophrenia. High baseline perplexity and self-disorder scores best predicted later schizophrenia spectrum disorders, while escalating transitions within the spectrum were not associated with any candidate psychopathological predictor.

Abstract

Despite the avalanche of empirical data on prodromal/"at risk" conditions, the essential aspects of the vulnerability to the schizophrenia spectrum remain largely unaddressed. We report here the results of the Copenhagen Schizophrenia Prodromal Study, a prospective, observational study of first admission patients in putative state of beginning psychosis (N=151) with a follow-up length of 60 months. At follow-up, the rate of conversion to schizophrenia spectrum diagnosis was 37%, whereas the conversion rate from schizotypal disorder to schizophrenia was 25%. High levels of perplexity and self-disorders baseline scores yielded the best prediction of the subsequent development of schizophrenia spectrum disorders. Escalating transitions within the spectrum (i.e., from schizotypal disorder to schizophrenia) were not associated to any candidate psychopathological predictor.

Citations in the library