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OBJECTIVE. The goal was to assess the prevalence, forms, demographic and mental health correlates of self-injurious behaviors in a representative college sample.

METHODS. A random sample of undergraduate and graduate students at 2 northeastern US universities were invited to participate in an Internet-based survey in the spring of 2005. Thirty-seven percent of the 8300 invited participants responded.

RESULTS. The lifetime prevalence rate of having ≥1 self-injurious behavior incident was 17.0%. Seventy-five percent of those students engaged in self-injurious behaviors more than once. Thirty-six percent reported that no one knew about their self-injurious behaviors and only 3.29% indicated that a physician knew. Compared with non-self-injurers, those with repeat self-injurious behavior incidents were more likely to be female, bisexual or questioning their sexual orientation. They were less likely to be …