TY - JOUR
T1 - Prevalence of nonsuicidal self-injury in nonclinical samples: systematic review, meta-analysis and meta-regression
AU - Swannell, Sarah
AU - Martin, Graham
AU - Page, Andrew
AU - Hasking, Penelope Anne
AU - St John, Nathan J
PY - 2014
Y1 - 2014
N2 - 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
AB - 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
UR - http://onlinelibrary.wiley.com/doi/10.1111/sltb.12070/pdf
U2 - 10.1111/sltb.12070
DO - 10.1111/sltb.12070
M3 - Article
SN - 0363-0234
VL - 44
SP - 273
EP - 303
JO - Suicide and Life-Threatening Behavior
JF - Suicide and Life-Threatening Behavior
IS - 3
ER -