title: Rates of non-suicidal self-injury in high school students across five years.
abstract: It is believed that the rate of non-suicidal self-injury (NSSI) among high school students is increasing. However, no known research has examined the rates of NSSI among non-clinical, high school samples of adolescents across several years. The current study utilized archival data from five academic years [2001 to 2005 (N = 1393)] to address this limitation by examining the lifetime prevalence rates of NSSI in urban high school students within the Midwestern United States. Results indicate a significant difference in rates across years by gender. Females showed a significant increase in their rates of NSSI compared to males, who showed a significant decline, during the last 3 years of the study. Implications of these findings for school personnel and directions for future research discussed.
authors.affiliation: Department of Psychology, University of Wisconsin-Eau Claire, Eau Claire, Wisconsin 54702, USA. muehlejj@uwec.edu
authors.forename: Jennifer J
authors.initials: JJ
authors.lastname: Muehlenkamp
authors.forename: Kirsten L
authors.initials: KL
authors.lastname: Williams
authors.forename: Peter M
authors.initials: PM
authors.lastname: Gutierrez
authors.forename: Laurence
authors.initials: L
authors.lastname: Claes
mesh_terms: D000293:Adolescent; D000294:Adolescent Behavior / Q000523:psychology*; D003863:Depression / Q000453:epidemiology; D005260:Female; D006801:Humans; D007389:Internal-External Control; D008137:Longitudinal Studies; D008297:Male; D015146:Midwestern United States / Q000453:epidemiology; D010379:Peer Group; D012574:Schools; D012649:Self Concept; D016728:Self-Injurious Behavior / Q000453:epidemiology* / Q000523:psychology; D012931:Social Environment; D013334:Students / Q000523:psychology / Q000706:statistics & numerical data*; D013406:Suicide, Attempted / Q000523:psychology / Q000706:statistics & numerical data*; D011795:Surveys and Questionnaires