Negative symptom configuration in first episode Schizophrenia: findings from the “Parma Early Psychosis” program

Lorenzo Pelizza, Giulia Landi, Clara Pellegrini, Emanuela Quattrone, Silvia Azzali, Pietro Pellegrini, Emanuela Leuci

Research output: Contribution to journalArticlepeer-review

Abstract

Purpose: Identifying distinct dimensions of negative symptoms in First Episode Schizophrenia (FES) might result in a better understanding and treatment of this invalidating symptomatology. Aim of this study was to examine negative symptom structure in FES patients using the Positive and Negative Syndrome Scale (PANSS). Materials and Methods: All 147 participants, aged 12–35 years, completed the PANSS and the Global Assessment of Functioning (GAF) scale. A principal component analysis with varimax rotation was performed to investigate PANSS negative symptom structure in the FES total sample. Results: A 2-factor model (i.e. “Expressive Deficits” and “Asociality” dimensions) was identified. Only “Expressive Deficits” domain had a significant negative correlation with baseline GAF score. Conclusions: This bipartite solution seems to be adequate to describe the phenomenological variety of negative symptoms experienced by FES individuals at the point of entry in early intervention services.

Original languageEnglish
JournalNordic Journal of Psychiatry
DOIs
Publication statusAccepted/In press - Jan 1 2019
Externally publishedYes

Keywords

  • dimensions
  • early psychosis
  • factor analysis
  • first episode schizophrenia
  • Negative symptoms

ASJC Scopus subject areas

  • Psychiatry and Mental health

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