Part II: Sex differences in persons found not guilty by reason of insanity: analysis of
data from the Connecticut NGRI Registry.
H. V. Zonana, R. L. Bartel, J. A. Wells, J. A. Buchanan and M. A. Getz,
Bull. Amer. Acad. Psychiatry & the Law
18(2): 129-42, 1990.
Thirty-one female insanity acquittess from Connecticut were matched to a group of 31 male NGRIs.
The samples were compared with regard to demographic, criminal, and clinical characteristics.
Logistic regression analyses were used to determine predictors of criminal recidivism for the sample.
Results indicated that women NGRIs were older, more likely to be married, less likely to be
substance abusers, had less extensive criminal records, and were released from hospitals sooner than
the men. A significant racial difference was noted: white women had less extensive criminal records
and were hospitalized for shorter periods than minority women. Results of the logistic regression
analyses showed that the strongest independent predictors of criminal recidivism were race and
having a diagnosis other than psychosis (schizophrenia, affective or organic disorders). Findings
support recent APA policy guidelines on the insanity defense.