Evidence map›Paper›PMID 21991279›Full record

ArticleWorld psychiatry : official journal of the World Psychiatric Association (WPA)2011

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 Saebye

Abstract read
In one paragraph

Article in World psychiatry : official journal of the World Psychiatric Association (WPA), 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 59 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
59citing papers in PubMed, 3 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

59 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Poor insight and self-disorders in schizophrenia: an empirical study.European archives of psychiatry and clinical neuroscience · 2026
    Article
  5. Long-term diagnostic and social outcomes after first psychiatric hospitalization.European psychiatry : the journal of the Association of European Psychiatrists · 2026
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  19. Perceptual Functioning.Current topics in behavioral neurosciences · 2023
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Josef ParnasDanish National Research Foundation: Center for Subjectivity Research, University of Copenhagen, Njalsgade 140-142, DK-2300 Copenhagen S, Denmar.
Andrea Raballo
Peter Handest
Lennart Jansson
Anne Vollmer-Larsen
Ditte Saebye

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

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.

Indexed as

anomalous subjective experiencesdiagnostic stabilityprodromepsychosisSchizophrenia spectrumschizotypal disordervulnerability

Identifiers

PMID21991279
PMCPMC3188774

What OpenQuestion holds

Textmetadata
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.