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Patterns of co-morbidity in male suicide completers

Published online by Cambridge University Press:  25 September 2003

C. D. KIM ,
A. LESAGE ,
M. SEGUIN ,
N. CHAWKY ,
C. VANIER ,
O. LIPP  and
G. TURECKI
C. D. KIM
Affiliation:
McGill Group for Suicide Studies, Douglas Hospital Research Centre, McGill University and Centre de Recherche Fernard Seguin, University of Montreal, Montreal, Quebec, Canada
A. LESAGE
Affiliation:
McGill Group for Suicide Studies, Douglas Hospital Research Centre, McGill University and Centre de Recherche Fernard Seguin, University of Montreal, Montreal, Quebec, Canada
M. SEGUIN
Affiliation:
McGill Group for Suicide Studies, Douglas Hospital Research Centre, McGill University and Centre de Recherche Fernard Seguin, University of Montreal, Montreal, Quebec, Canada
N. CHAWKY
Affiliation:
McGill Group for Suicide Studies, Douglas Hospital Research Centre, McGill University and Centre de Recherche Fernard Seguin, University of Montreal, Montreal, Quebec, Canada
C. VANIER
Affiliation:
McGill Group for Suicide Studies, Douglas Hospital Research Centre, McGill University and Centre de Recherche Fernard Seguin, University of Montreal, Montreal, Quebec, Canada
O. LIPP
Affiliation:
McGill Group for Suicide Studies, Douglas Hospital Research Centre, McGill University and Centre de Recherche Fernard Seguin, University of Montreal, Montreal, Quebec, Canada
G. TURECKI
Affiliation:
McGill Group for Suicide Studies, Douglas Hospital Research Centre, McGill University and Centre de Recherche Fernard Seguin, University of Montreal, Montreal, Quebec, Canada
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Abstract

Background. Psychiatric co-morbidity is thought to be an important problem in suicide, but it has been little investigated. This study aims to investigate patterns of co-morbidity in a group of male suicide completers.

Method. One hundred and fifteen male suicide completers from the Greater Montreal Area and 82 matched community controls were assessed using proxy-based diagnostic interviews. Patterns of co-morbidity were investigated using latent class analysis.

Results. Three subgroups of male suicide completers were identified (L2=171·62, df=2012, P<0·05), they differed significantly in the amount of co-morbidity (Kruskal–Wallis χ2=71·227, df=2, P<0·000) and exhibited different diagnostic profiles. Co-morbidity was particularly found in subjects with disorders characterized by impulsive and impulsive–aggressive traits, whereas subjects without those traits had levels of co-morbidity which were not significantly different from those of controls (χ2=8·17, df=4, P=0·086).

Conclusions. Suicide completers can be divided into at least three subgroups according to co-morbidity: a low co-morbidity group, a substance-dependent group and a group exhibiting childhood onset of psychopathology.

Type
Research Article
Information
Psychological Medicine , Volume 33 , Issue 7 , November 2003 , pp. 1299 - 1309
Copyright
© 2003 Cambridge University Press

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