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Prevalence of psychotic disorders and its association with methodological issues. A systematic review and meta-analyses

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  • Berta Moreno-Küstner
  • Carlos Martín
  • Loly Pastor

Abstract

Objectives: The purpose of this study is to provide an updated systematic review to identify studies describing the prevalence of psychosis in order to explore methodological factors that could account for the variation in prevalence estimates. Methods: Studies with original data related to the prevalence of psychosis (published between 1990 and 2015) were identified via searching electronic databases and reviewing manual citations. Prevalence estimates were sorted according to prevalence type (point, 12-months and lifetime). The independent association between key methodological variables and the mean effect of prevalence was examined (prevalence type, case-finding setting, method of confirming diagnosis, international classification of diseases, diagnosis category, and study quality) by meta-analytical techniques and random-effects meta-regression. Results: Seventy-three primary studies were included, providing a total of 101 estimates of prevalence rates of psychosis. Across these studies, the pooled median point and 12-month prevalence for persons was 3.89 and 4.03 per 1000 respectively; and the median lifetime prevalence was 7.49 per 1000. The result of the random-effects meta-regression analysis revealed a significant effect for the prevalence type, with higher rates of lifetime prevalence than 12-month prevalence (p

Suggested Citation

  • Berta Moreno-Küstner & Carlos Martín & Loly Pastor, 2018. "Prevalence of psychotic disorders and its association with methodological issues. A systematic review and meta-analyses," PLOS ONE, Public Library of Science, vol. 13(4), pages 1-25, April.
    • Handle: RePEc:plo:pone00:0195687
    DOI: 10.1371/journal.pone.0195687
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    Cited by:

    1. Christopher Weyant & Margaret L. Brandeau & Sanjay Basu, 2019. "Personalizing Medical Treatment Decisions: Integrating Meta-analytic Treatment Comparisons with Patient-Specific Risks and Preferences," Medical Decision Making, , vol. 39(8), pages 998-1009, November.
    2. Ae Sil Kim & Mi Heui Jang & Min Jung Sun, 2021. "Effects of Mindfulness-Based Stress Reduction (MBSR) on Stress, Heart Rate Variability, Affect, and Wellbeing among People with Schizophrenia," IJERPH, MDPI, vol. 18(22), pages 1-14, November.

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