Washington: Teenagers who attempt suicide before they are 18 are much more likely as adults to be aggressive toward their girlfriends or wives, including hitting and injuring their partners, says a new study.
This ground-breaking research is based on data from 153 males from higher-crime neighbourhoods who were assessed yearly from ages 10 to 32, and their romantic partners who participated when the men were ages 18 to 25.
According to the study's authors, David Kerr of the Oregon State University (OSU) and Deborah Capaldi of the Eugene-based Oregon Social Learning Centre, the magnitude of the association between a suicide attempt and injury of a partner was surprising.
Fifty-eight percent of youth in that study group who attempted suicide went on to injure a partner, compared to 23 percent of young men who did not attempt suicide.
"The study began when these men were kids, before anyone knew who was going to become violent," said Kerr, assistant professor of psychology at OSU.
"That is quite different from research that starts with violent men, or women from a domestic violence shelter, and tries to look back in time for explanations."
The study also did not rely on just one source of information, such as men's own reports of aggression. Instead, the researchers had data from official domestic violence arrest records, women's own reports of injury, and live observations of the couples.
The researchers controlled for other problems suicidal youth can have which are also linked to violence to partner, such as aggression, depression, substance use, and family abuse history.
The researchers still found that young men who attempted suicide were more aggressive toward their partners.
"It was fascinating that this link just refused to be explained away," said Kerr.
Capaldi, who has studied issues around domestic violence for many years, said the study indicates the risk factors for men's violence toward women differ from much of what is accepted.
"Conventional wisdom portrays men's violence to women as more cold, controlled and calculated," she said, according to an OSU release.
"The findings of this study indicate that for some men violence is related to a history of impulsive aggression that includes self-harm as well as aggression to others."
Capaldi added that this finding is consistent with a growing body of recent work indicating that both men and women who are physically aggressive toward a partner have histories of problems with aggressive and impulsive behaviour.
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