The effects of daily sunlight levels on suicide rates

The correlation between sunlight and mental health has been long studied and is even involved in the development of Seasonal Affective Disorder (SAD), with subsequent development of light therapy for affected individuals. This points towards the question of the effects of varying levels of daily sunlight in the United States on rates of suicide –[…]

The Meteorological Factors Associated With Suicide

This study analyzed meteorological conditions at the time of attempted or completed suicides & examined the possible link between the changes of meteorological factors & the frequency of suicidal behaviour in the Mostar region, Bosnia. Results showed meteorological factors of the days with suicidal behaviour were similar to the day prior, but there was a[…]

Air Pollution and Emergency Department Visits for Suicide Attempts in Vancouver, Canada

The effects of ambient air pollution on visits to a Vancouver emergency room for suicide attempts were investigated. The generalized linear mixed models technique was applied in the analysis of data. Both hierarchical & case-crossover methods confirmed positive & statistically significant associations among carbon monoxide, nitrogen dioxide, sulphur dioxide, & particulate matter for all suicide[…]

Variation in RGS2 is Associated With Suicidal Ideation in an Epidemiological Study of Adults Exposed to the 2004 Florida Hurricanes

This study examined whether rs4606, a single nucleotide polymorphism in the translated region at the 3′ end of RGS2, was related to suicide ideation in an epidemiologic sample of adults living in areas affected by the 2004 Florida hurricanes. A sample was generated via random digit-dial procedures. 607 participants who returned buccal DNA samples via[…]

Effect of the 2004 Tsunami on Suicide Rates in Sri Lanka

The effect of the 2004 tsuanmi on suicide rates in Sri Lanka were investigated. The number of suicides in the 2 years prior & 1 year after the tsunami were examined. Data from districts affected by the tsunami were compared with those from unaffected districts. No significant differences were found between the number of suicides[…]

Re: “Seasonal Associations Between Weather Conditions and Suicide-Evidence Against a Classic Hypothesis”


Seasonal Associations Between Weather Conditions and Suicide – Evidence Against a Classic Hypothesis

The authors modeled monthly data on suicide & climatic conditions in Switzerland. Cross-correlations between the filtered residual series were calculated for the period 1881-2000, for consecutive 30-year periods, for different suicide methods, & with regard to the seasonality hypothesis, for series relying on moving 1- & 3-month frames. Positive cross-correlations emerged between suicide & temperature[…]

Effect of Latitude on Suicide Rates in Japan

In this letter to the editor, the authors discuss their study of the effect of latitude on suicide rates in Japan, given that there is a northern predominance in the prevalence of seasonal affective disorders in Japan. Government statistics on suicide for 1999 were examined & variables associated with latitude effect, yearly mean temperature, &[…]

Relationship Between Daily Suicide Counts and Temperature in England and Wales

This study assessed the relationship between daily temperature & daily suicide counts in England & Wales between January 1993-December 2003 & established whether heatwaves are associated with increased mortality from suicide. Time-series regression analysis was used to explore & quantify the relationship between daily suicide counts & daily temperature. The impact of two heatwaves on[…]

The Effect of Geomagnetic Storms on Suicide

This study correlated geomagnetic storm activity with suicide rates. A retrospective analysis over a 13 year period, 1980-1992, was conducted. A significant correlation was found between the mean total of suicides & the mean average of storm activity during the study period. This correlation was true of both male & female suicides. Study results confirm[…]