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    Prevalence of Nonsuicidal Self-Injury in Nonclinical Samples: Systematic Review,Meta-Analysis and Meta-Regression

    Access Status
    Fulltext not available
    Authors
    Swannell, S.
    Martin, G.
    Page, A.
    Hasking, Penelope
    St John, N.
    Date
    2014
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Swannell, S. and Martin, G. and Page, A. and Hasking, P. and St John, N. 2014. Prevalence of Nonsuicidal Self-Injury in Nonclinical Samples: Systematic Review,Meta-Analysis and Meta-Regression. Suicide and Life-Threatening Behavior. 44 (3): pp. 273-303.
    Source Title
    Suicide and Life-Threatening Behavior
    DOI
    10.1111/sltb.12070
    ISSN
    0363-0234
    School
    School of Psychology
    URI
    http://hdl.handle.net/20.500.11937/8765
    Collection
    • Curtin Research Publications
    Abstract

    Published prevalence estimates of nonsuicidal self-injury (NSSI) among nonclinical samples are highly heterogeneous, raising concerns about their reliability and hindering attempts to explore the alleged increase in NSSI over time. Accordingly, the objectives of this study were to investigate the influence of methodological factors on heterogeneity in NSSI prevalence estimates, explore changes over time, and estimate overall international NSSI prevalence. Results showed that methodological factors contributed over half (51.6%) of the heterogeneity in prevalence estimates, and, after adjusting for these factors, NSSI prevalence did not increase over time. Overall, pooled NSSI prevalence was 17.2% among adolescents, 13.4% among young adults, and 5.5% among adults. Clearly, development of standardized methodology in NSSI research is crucial if accurate estimates are desired.

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