Demographics
Conterio and Favazza estimate that 750 per 100,000 population exhibit self-injurious behavior (more recent estimates are that 1000 per 100,000, or 1%, of Americans self-injure). In their 1986 survey, they found that 97% of respondents were female, and they compiled a "portrait" of the typical self-injurer. She is female, in her mid-20s to early 30s, and has been hurting herself since her teens. She tends to be middle- or upper-middle-class, intelligent, well-educated, and from a background of physical and/or sexual abuse or from a home with at least one alcoholic parent. Eating disorders were often reported. Types of self-injurious behavior reported were as follows:
Cutting: 72 percent Burning: 35 percent Self-hitting: 30 percent Interference w/wound healing: 22 percent Hair pulling: 10 percent Bone breaking: 8 percent Multiple methods: 78 percent (included in above)
On average, respondents admitted to 50 acts of self-mutilation; two-thirds admitted to having performed an act within the past month. It's worth noting that 57 percent had taken a drug overdose, half of those had overdosed at least four times, and a full third of the complete sample expected to be dead within five years.
Half the sample had been hospitalized for the problem (the median number of days was 105 and the mean 240). Only 14% said the hospitalization had helped a lot (44 percent said it helped a little and 42 percent not at all). Outpatient therapy (75 sessions was the median, 60 the mean) had been tried by 64 percent of the sample, with 29 percent of those saying it helped a lot, 47 percent a little, and 24 percent not at all. Thirty-eight percent had been to a hospital emergency room for treatment of self-inflicted injuries (the median number of visits was 3, the mean 9.5).
Why so many women?
Although the results of an informal net survey and the composition of an e-mail support mailing list for self-injurers don't show quite as strong a female bias as Conterio's numbers do (the survey population turned out to be about 85/15 percent female, and the list is closer to 67/34 percent), it is clear that women tend to resort to this behavior more often than men do. Miller (1994) is undoubtedly onto something with her theories about how women are socialized to internalize anger and men to externalize it. It is also possible that because men are socialized to repress emotion, they may have less trouble keeping things inside when overwhelmed by emotion or externalizing it in seemingly unrelated violence.
