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Comparisons of schizotypal traits across 12 countries: Results from the International Consortium for Schizotypy Research

  • Eduardo Fonseca-Pedrero
  • , Raymond C.K. Chan
  • , Martin Debbané
  • , David Cicero
  • , Lisa C. Zhang
  • , Colleen Brenner
  • , Emma Barkus
  • , Richard J. Linscott
  • , Thomas Kwapil
  • , Neus Barrantes-Vidal
  • , Alex Cohen
  • , Adrian Raine
  • , Michael T. Compton
  • , Erin B. Tone
  • , Julie Suhr
  • , José Muñiz
  • , Alicia Pérez de Albéniz
  • , Axit Fumero
  • , Stella Giakoumaki
  • , Ioannis Tsaousis
  • Antonio Preti, Michael Chmielewski, Julien Laloyaux, Anwar Mechri, Mohamed Aymen Lahmar, Viviana Wuthrich, Frank Larøi, Johanna C. Badcock, Assen Jablensky, Javier Ortuño-Sierra

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Background: Schizotypal traits are expressions of underlying vulnerability to psychotic disorders which have a potential impact on mental health status, neurocognition, quality of life, and daily functioning. To date, little research has examined epidemiologic landscape of schizotypal traits at the cross-national level. Our aim was to study the expression of schizotypal traits by sex, age, and country in a combined sample gathered from 12 countries. Methods: A total of 27,001 participants completed the Schizotypal Personality Questionnaire (SPQ). The mean age of participants was 22.12 (SD = 6.28); 37.5% (n = 10,126) were males. Results: Schizotypal traits varied according to sex, age, and country. Females scored higher than males in the positive dimension, whereas males scored higher in the disorganization dimension. By age, a significant decrease in the positive schizotypal traits was observed. Epidemiological expression of schizotypal traits varied by country. Moreover, several interactions by sex, age, and country were found. Conclusions: This pattern is similar to those found in patients with psychosis and psychotic-like experiences. These findings provide new insights and the opportunity to explore the phenotypic expression of schizotypal traits at cross-national level.

    Original languageEnglish
    Pages (from-to)128-134
    Number of pages7
    JournalSchizophrenia Research
    Volume199
    DOIs
    Publication statusPublished - 1 Sept 2018

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