Latent class analysis of DSM-IV schizotypal personality disorder criteria in psychiatric patients

Andrea Fossati, Cesare Maffei, Marco Battaglia, Maria Bagnato, Deborah Donati, Michela Donini, Monica Fiorilli, Liliana Novella

Research output: Contribution to journalArticle

Abstract

The aim of the study was to evaluate the latent structure of DSM-IV schizotypal personality disorder (SPD) diagnostic criteria. The sample consisted of 564 consecutively admitted inpatients and outpatients. Exploratory latent class analysis identified a four-class model as the best fitting model for DSM-IV SPD criteria. The first of the SPD latent classes was mainly characterized by odd thinking, inappropriate affect, and interpersonal features; the second class by cognitive/perceptual difficulties; the third class by paranoid features; and the fourth class by absence of SPD features. The conditional probability pattern of the four-class solution could be safely replicated across confounder strata. Unlike previous findings, oddness, aloofness, and social withdrawal, rather than positive symptoms, best characterized SPD even in clinical samples.

Original languageEnglish
Pages (from-to)59-71
Number of pages13
JournalSchizophrenia Bulletin
Volume27
Issue number1
Publication statusPublished - 2001

Keywords

  • Diagnosis
  • Item analysis
  • Latent class analysis
  • Mixture models
  • Schlzotypal personality disorder

ASJC Scopus subject areas

  • Psychiatry and Mental health
  • Neuroscience(all)

Fingerprint Dive into the research topics of 'Latent class analysis of DSM-IV schizotypal personality disorder criteria in psychiatric patients'. Together they form a unique fingerprint.

  • Cite this

    Fossati, A., Maffei, C., Battaglia, M., Bagnato, M., Donati, D., Donini, M., Fiorilli, M., & Novella, L. (2001). Latent class analysis of DSM-IV schizotypal personality disorder criteria in psychiatric patients. Schizophrenia Bulletin, 27(1), 59-71.