Journal ArticleDOI
Increasing seasonality of suicide in Australia 1970-1999.
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TLDR
It is found that suicide, violent suicide and suicide by males are seasonal and that the seasonal amplitude has increased over time and may be related to differences in patterns of anti-depressant use and also the effect of migration on the number of seasonally vulnerable individuals in Australia.Abstract:
Previous studies have found that rates of suicide have a distinct annual rhythm with a peak in spring. Two recent European studies, however, have found that the amplitude of this rhythm has decreased over time. The purpose of this study was to examine whether such effects are found in Australia. Australian Bureau of Statistics data on all suicides in Australia 1970-1999 were analysed by spectral analysis. We found that suicide, violent suicide and suicide by males are seasonal and that the seasonal amplitude has increased over time. Males who use violent methods determine the seasonal effect. These results support previous findings that suicide and particularly violent suicide have a characteristic seasonal rhythm. However, the progressive increase in the amplitude of this rhythm over time in Australia is in direct contrast to other European findings. We suggest that this may be related to differences in patterns of anti-depressant use and also the effect of migration on the number of seasonally vulnerable individuals in Australia.read more
Citations
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Journal ArticleDOI
Relationship between daily suicide counts and temperature in England and Wales
TL;DR: There is increased risk of suicide during hot weather, and time-series regression analysis was used to explore and quantify the relationship between daily suicide counts and daily temperature.
Journal ArticleDOI
Suicide and seasonality
Christos Christodoulou,Athanassios Douzenis,Fotis C. Papadopoulos,Athanasia Papadopoulou,Georgios Bouras,Rossetos Gournellis,Lefteris Lykouras +6 more
TL;DR: A study on suicide and seasonality in Cyprus found that the number of people taking their own lives during the summer months is higher than in the winter.
Journal ArticleDOI
The hypothalamic-pituitary-adrenal axis and serotonin abnormalities: a selective overview for the implications of suicide prevention
Maurizio Pompili,Gianluca Serafini,Marco Innamorati,Anne Maria Möller-Leimkühler,Giancarlo Giupponi,Paolo Girardi,Roberto Tatarelli,David Lester +7 more
TL;DR: HPA over-activity may be a good predictor of mood disorders and perhaps suicidal behavior via abnormalities in the serotonergic system, and Corticosteroids may play an important role in the relationship between stress, mood changes and perhaps suicides by interacting with 5-HT1A receptors.
Journal ArticleDOI
Seasonality of Suicidal Behavior
TL;DR: Comprehensive evaluation of risk factors which could be linked to the seasonal variation in suicide is important, not only to identify the major driving force for the seasonality of suicide, but also to lead to better suicide prevention in general.
Journal ArticleDOI
Suicide rates and the association with climate: A population-based study
Hsin Chien Lee,Herng Ching Lin,Shang Ying Tsai,Shang Ying Tsai,Chung Yi Li,Chu Chieh Chen,Chung Chien Huang +6 more
TL;DR: The seasonal effect on suicide is significant in Taiwan and is of research interest for future studies regarding mechanisms of suicidal behavior, and also of practical interest for better timing of suicide interventions and effective preventive strategies.
References
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Journal ArticleDOI
Toward a clinical model of suicidal behavior in psychiatric patients.
TL;DR: A stress-diathesis model is proposed in which the risk for suicidal acts is determined not merely by a psychiatric illness but also by a diathesis, reflected in tendencies to experience more suicidal ideation and to be more impulsive and, therefore, more likely to act on suicidal feelings.
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Mammalian Photoperiodic System: Formal Properties and Neuroendocrine Mechanisms of Photoperiodic Time Measurement
TL;DR: Variations in photoperiodic response are seen not only between species but also between breeding populations within a species and between individuals within single breeding populations, and among species differences with respect to the importance and specific functions of various melatonin target sites.
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Australia's mental health: an overview of the general population survey
TL;DR: Australia has its own national estimates of psychiatric morbidity, and the morbidity is associated with considerable disablement, but most of it is untreated.
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Method Choice, Intent, and Gender in Completed Suicide
TL;DR: Although women were significantly less likely to use a violent method than men, there was no difference in the lethality of their suicidal intent.