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Psychol Med. 2012 Sep;42(9):1857-63. doi: 10.1017/S0033291711002960. Epub 2012 Jan 9.

Prevalence of psychotic symptoms in childhood and adolescence: a systematic review and meta-analysis of population-based studies.

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1
Department of Psychiatry, Royal College of Surgeons in Ireland, and St Joseph's Adolescent Unit, St Vincent's Hospital Fairview, Dublin, Ireland. iankelleher@rcsi.ie

Abstract

BACKGROUND:

Psychotic symptoms occur more frequently in the general population than psychotic disorder and index risk for psychopathology. Multiple studies have reported on the prevalence of these symptoms using self-report questionnaires or clinical interviews but there is a lack of consensus about the prevalence of psychotic symptoms among children and adolescents.

METHOD:

We conducted a systematic review of all published literature on psychotic symptom prevalence in two age groups, children aged 9-12 years and adolescents aged 13-18 years, searching through electronic databases PubMed, Ovid Medline, PsycINFO and EMBASE up to June 2011, and extracted prevalence rates.

RESULTS:

We identified 19 population studies that reported on psychotic symptom prevalence among children and adolescents. The median prevalence of psychotic symptoms was 17% among children aged 9-12 years and 7.5% among adolescents aged 13-18 years.

CONCLUSIONS:

Psychotic symptoms are relatively common in young people, especially in childhood. Prevalence is higher in younger (9-12 years) compared to older (13-18 years) children.

PMID:
22225730
DOI:
10.1017/S0033291711002960
[Indexed for MEDLINE]
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