Prevalence of Nonsuicidal Self-Injury in Nonclinical Samples: Systematic Review,Meta-Analysis and Meta-Regression
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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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Radovic, Sara; Hasking, Penelope (2013)Background: The high prevalence of nonsuicidal self-injury (NSSI) among young people has prompted research into why this may be a chosen coping strategy. One possibility is that the behavior is modeled from media depictions. ...
Change in Emotion Regulation Strategy Use and Its Impact on Adolescent Nonsuicidal Self-Injury: A Three-Year Longitudinal Analysis Using Latent Growth ModelingVoon, D.; Hasking, Penelope; Martin, G. (2014)This longitudinal study examines the extent to which changes in the use of cognitive reappraisal, expressive suppression, and rumination impact on frequency, duration, and medical severity of nonsuicidal self-injury (NSSI) ...
Change in emotion regulation strategy use and its impact on adolescent non-suicidal self-injury: A three-year longitudinal analysis using latent growth modellingVoon, D.; Hasking, Penelope; Martin, G. (2014)This longitudinal study examines the extent to which changes in the use of cognitive reappraisal, expressive suppression, and rumination impact on frequency, duration, and medical severity of nonsuicidal self-injury (NSSI) ...