Data obtained on a group of emergency room patients with a presenting complaint of violence (No. = 40) are compared with data on a matched control group of relatives (No. = 40) of other emergency room patients. The comparison is made on selected neurological and sociopsychiatric variables. The results show that: severe head injury before the age of 10 is not associated with violent adult behavior; that there is no difference discernible as to many neurotic childhood traits; that the violent subjects acknowledge a greater number of suicidal thoughts than do the controls; and that no difference in violent criminal history exists between the groups. Based on these results, specific hypotheses for further analytical studies are suggested.
Climent CE, Ervin FR. Historical Data in the Evaluation of Violent SubjectsA Hypothesis Generating Study. Arch Gen Psychiatry. 1972;27(5):621-624. doi:10.1001/archpsyc.1972.01750290047009