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Self-Injury Fact Sheet (page 3)

By Amanda Purington|Janis Whitlock
Cornell Research Program on Self-Injurious Behavior in Adolescents and Young Adults

Who Self-Injures?

Because it so often occurs in private, it is very difficult to identify one or more discrete self-injurer “profiles.” Unless they are being treated for another condition related to the behavior, such as depression or anxiety, identifying and reaching self-injurers can be very difficult. Thus, most studies of self-injury have relied on samples in clinical settings being treated for other disorders (Brodsky et al., 1995).

Because of this, reliable estimates of the prevalence of selfinjury in a general population are difficult to obtain. A 2002 study of a Canadian high school population found that roughly 13.9% of the urban and suburban high school student population had performed acts of self-injury (Ross & Heath, 2002). Other studies report general population rates (not specific to adolescents) as low as 4% (Deiter, Nicholls, & Pearlman, 2000).

Rates of self-injury, “cutting” in particular, appear to be increasing in both community and clinical adolescent populations. During a decade long longitudinal cohort study of adolescent self-injury in Great Britain, researchers found a 28 percent increase in the number of adolescents who presented for self-injurious treatment at a general hospital in Oxford, England (Boyce, Oakley-Browne, & Hatcher, 2001). Although no such study has been conducted within the US, the presence of self-injury in new and popular forms of media, such as in newspapers, have increased significantly in the past several years – from no reports in 1984 to 210 in the last year (Factiva, July 17, 2004). In addition to a growing number of new reports on the subject, a recent Los Angeles Daily News article reports that self-injury is the fastest-growing adolescent behavioral problem. It reports that referrals for cutting and other forms of self-injury within the Los Angeles Unified School District increased dramatically in the last year; the School District’s suicide-prevention hotline fielded 600 calls on self-mutilation in a single 18 month period (Radcliffe, 2004).

Whether the increasing attention to self-injury is due to the fact that more youth are actually engaging in the behavior, to increased likelihood to seek help, or to an increasing ability among service providers to correctly identify and report the behavior is unclear. It may very well be a combination of all three.

Available evidence suggests females are only somewhat more likely to self-injure than males. While Ross and Heath (2002) found that 64% of adolescents who engaged in self-injury in their study were female, other studies have found similar rates for both males and females (Gratz, 2001; Martin, Rozanes, Pearce, & Allison, 1995). The slight tendency for females to be more involved with self-injury mirrors the prevalence of those with eating disorders (Farber, 1997; Favazza & Conterio, 1989; Ross & Heath, 2002). Those who self-injure and those with eating disorders seem similar in other ways, too. A majority (77%) of the self-injurers studied by Ross and Heath (2002) were Caucasian, and studies of eating disorders find similar rates. Researchers have found both of these behaviors typically start in early adolescence, around thirteen or fourteen years of age. In fact, there is some evidence that eating disorders and self-injury stem from similar individual characteristics, such as the tendency to act impulsively (Farber, 1997). Unlike eating disorders, however, self-injury is quite easy to keep secret for long periods of time, which can delay identification and treatment considerably.

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