Sammanfattning
Objective We aimed to assess the risk factors associated with homicidal behaviour in male
patients diagnosed with schizophrenia. Methods In a period of 1 year, male schizophrenia cases
between 18-65 years of age (n = 210) were included. The clinical evaluation included the Positive and
Negative Syndrome Scale (PANSS) and Overt Aggression Scale (OAS). The patients were divided into
three groups in terms of violent behaviour history: (1) homicide group (n = 30), (2) a violent act
resulting in serious injury (n = 71), (3) control group (patients without a history of a violent act) (n =
109). Results Lower level of education, rural residence, being unemployed and living alone were
found to be significantly more common in patients who had committed a violent act compared to the
schizophrenia patients in the control group. In order to explore the predictive value of several factors
associated with violent behaviour, a logistic regression model was used, and variables (shorter
duration of education, living alone, and lack of insight) significantly predicted the presence of violent
behaviour (murder and/or injury) (?2=31.78, df = 12, p = 0.001). Conclusions In order to be able to
determine causality of homicidal acts in schizophrenia patients, our significant findings between
homicidal violence, non-homicidal violence and the control group would merit further attention and
exploration in further studies.