When substance abuse is included this is no longer true, and I imagine that users of specific substances (certainly not all) whether diagnosed or not are generally more violent than the rest of the population.
The new study, presented in the May 20 issue of the scientific journal JAMA, is the largest in this field to date. In it, researchers compared the rate of violent crime in over 8,000 people diagnosed with schizophrenia between 1973 and 2006, and a control group of 80,000 people from the general population of Sweden.
Twenty-eight per cent of those with schizophrenia and co-occurring substance abuse were convicted of violent crime, compared to eight per cent of those with schizophrenia and no substance abuse, and five per cent of the general population.
“Hence, the idea that people with schizophrenia are generally more violent than those without is not true,” says Dr Niklas Lľngström, one of the researchers behind the study. “People with schizophrenia but no co-occurring substance abuse are insignificantly more violent than people in general.”
Dr Lľngström hopes that the results could help alleviate fears about mental illness.
“The stigmatisation of the mentally ill increases their alienation and makes people less likely to seek the help they need from mental health services”, he says. “Our results demonstrate once again the importance of preventing, discovering and treating substance misuse in efforts to reduce violent crime.”
As Philip as Furious Season pointed out, this is bad news for the likes of Fuller Torrey and those who would have anyone with a diagnosis medicated against our wills for life.