In order to ascertain if and how age, gender and choice of lethal means influence the seasonal distribution of suicide in Italy, data concerning all suicides registered in Italy from 1984 to 1995 have been analyzed, taking these variables into account.
In the age group 14-65 years and over a total of 31 771 male suicides (mean yearly rate, 12.6 per 100000) and 11 984 female suicides (mean yearly rate, 4.4 per 100000) have been identified in Italy during the study period.
Suicides in the younger age ranges, both among males and females, show a less marked asymmetrical seasonal distribution than those in the older age groups.
Only suicides committed by violent methods (ICD 953-958) show clear evidence of seasonality, with a peak in spring and a low in late autumn.
Suicides committed by non-violent methods (950-952) follow no seasonal trend in either sex.
Spectral analysis reveals a circannual rhythm for violent suicides (ICD 953-958) in both genders.
For male non-violent suicides (ICD 950-952), a period with a frequency of 0.0833 (12 months) has been identified, but with a polarity opposite to that of male violent suicides.
For female non-violent suicides, no period of frequency of 0.0833 could be identified, but, as for female violent suicides, a period with frequency close to 0.2500 (4 months) has been found. (...)
Mots-clés Pascal : Suicide, Variation saisonnière, Prévalence, Italie, Europe, Méthode, Sexe, Age, Epidémiologie, Santé mentale, Facteur risque, Homme
Mots-clés Pascal anglais : Suicide, Seasonal variation, Prevalence, Italy, Europe, Method, Sex, Age, Epidemiology, Mental health, Risk factor, Human
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 99-0061991
Code Inist : 002B18C11. Création : 31/05/1999.