The researchers factored in aspects such as whether the person grew up in an at-risk area, namely if he or she was living in a big city or had migrated, experienced forms of physical or sexual abuse or used cannabis or engaged in problematic alcohol consumption before the age of 18 years.
The researchers evaluated whether study participants had been convicted of violent crimes such as sexual assault, manslaughter, battery or murder.
In all groups, people who had experienced at least one of the high-risk factors had a marginally higher chance of becoming violently aggressive.
With every additional risk factor, this chance increased step-wise, reflected by a stair pattern throughout all six populations, the researcher said.
When all high-risk factors were considered together, a person with high risk load - three or more of these risk factors - was ten times more likely to become violently aggressive, the researchers added.
The researchers factored in aspects such as whether the person grew up in an at-risk area, namely if he or she was living in a big city or had migrated, experienced forms of physical or sexual abuse or used cannabis or engaged in problematic alcohol consumption before the age of 18 years.
The researchers evaluated whether study participants had been convicted of violent crimes such as sexual assault, manslaughter, battery or murder.
In all groups, people who had experienced at least one of the high-risk factors had a marginally higher chance of becoming violently aggressive.
With every additional risk factor, this chance increased step-wise, reflected by a stair pattern throughout all six populations, the researcher said.
When all high-risk factors were considered together, a person with high risk load - three or more of these risk factors - was ten times more likely to become violently aggressive, the researchers added.