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Journal of Neurology, Neurosurgery, and Psychiatry 1998;65:467-471; doi:10.1136/jnnp.65.4.467
Copyright © 1998 by the BMJ Publishing Group Ltd.
J Neurol Neurosurg Psychiatry 1998;65:467-471 ( October )

Crime in Huntington's disease: a study of registered offences among patients, relatives, and controls

Per Jensen,a Kirsten Fenger,b Tom G Bolwig,c Sven Asger Sørensenb

a Kommunehospitalet, University Hospital, Copenhagen, Department of Psychiatry, b Institute of Medical Biochemistry and Genetics, University of Copenhagen, c Rigshospitalet, University State Hospital, Copenhagen, Department of Psychiatry, Denmark

Correspondence to: Correspondance to: Dr SA Sørensen, Institute of Medical Biochemistry and Genetics, Panum Institute, Blegdamsvej 3, DK-2200 Copenhagen N, Denmark.

Received 3 February 1998 and in revised form 6 May 1998; Accepted 12 May 1998

OBJECTIVES---Criminal behaviour has been described as a problem in Huntington's disease, but systematic studies including control groups have been missing. Based on information from Danish registries, rates and types of crime committed by patients with Huntington's disease, non-affected relatives, and controls were studied.
METHODS---99 males and 151 females with Huntington's disease were compared with 334 non-affected first degree relatives (134 men and 200 women) and to matched control groups as to frequencies and types of registered criminal convictions. Due to specific age criteria, the group of relatives comprised only about 9% carriers of the gene coding for Huntington's disease.
RESULTS---In male patients, crime rates were significantly increased compared with first degree relatives (RR=2.8) and controls (RR=2.3). All types of crime occurred more often in male patients; more severe crimes (murder, rape, arson) were not reported. Rates of drunken driving were significantly increased compared with relatives (RR=3.8) and controls (RR=7.1). Crime rates were neither increased in female patients nor in male and female first degree relatives.
CONCLUSION---The results indicate increased prevalence of criminal behaviour in males carrying the gene for Huntington's disease. The crimes committed seem to be of relatively minor severity and are probably closely linked to the personality changes often seen as a result of the disease process, although depressive reactions to the disease, with secondary alcohol misuse, may also play a part. Environmental and familial factors shared by patients and non-affected at risk persons seem to be of less aetiological importance.

Keywords: Huntington's disease; crime


© 1998 by Journal of Neurology, Neurosurgery, and Psychiatry

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