Resource Tag: SEASONAL INFLUENCES

Data from Italy were investigated to evaluate the influence of recent social & medicine-related changes on the seasonality of suicides in the country. A total of 71,227 male suicides & 26,466 female suicides occurring in Italy from 1974-2003 were investigated with harmonic spectral analysis to extract their monthly seasonal dispersion by 5-year intervals. Suicide rates […]

This study tested the hypothesis that suicides that can be attributed to a psychiatric illness show a higher seasonality than suicides due to any other reason. All suicides registered in Italy from 1984-2000 were analyzed with circular statistic techniques. Suicides attributable to a psychiatric illness showed a significantly higher seasonal unevenness than the suicides attributable […]

Using nationwide, 7-year population-based data for 1997-2003, the authors examined marital status to see if it predicted suicide among the ethnic Chinese population of Taiwan. Using cause of death data, with a case-control design, two groups – 17,850 adult suicides & 71,400 adult deaths other than suicide – were studied. Using multiple logistic regression analysis […]

All hospital-admitted parasuicide cases in the area of Le—n, Nicaragua were assessed over a three-year period using standardized instruments. 233 parasuicide cases were identified giving a parasuicide rate of 66.3/100,000 inhabitants per year based on the population 10 years & older. A majority of cases involved females who were significantly younger than the males. The […]

Monthly suicide frequencies in Switzerland are available for the period 1876-2000. Data on canton/region are available for the periods 1901-1920 & 1969-2000, & data on suicide method for the periods 1881-1920 & 1969-2000. Analyses focusing on the overall change are studied using data aggregated by quinquennia. The decrease of seasonal effects in suicide applies to […]

The authors examined the frequency of suicide & its relation to meteorological factors in the state of Victoria between January 1990 & April 1999. The incidence of suicide had its nadir in winter & zenith in the spring & summer, paralleling closely the number of bright sunlight hours. This pattern was particularly marked for violent […]

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This study evaluated the characteristics of cases of acute poisoning in adults who were admitted to emergency services over a 3-year period in Turkey. Overall, 68.6% of acute poisonings were suicide attempts, & of these patients, 84.9%, 14%, & 1.1% were attempting suicide for the first, second, & third times, respectively. Among 810 total cases, […]

The authors analysed all suicides & deaths from undetermined injury reported between 1979-2001 in England & Wales for persons born between 1955 & 1966, using Poisson & negative binomial generalised linear models with seasonal components. A sample size of 26,915 subjects was generated. Birth rates of people who later kill themselves show disproportionate excess for […]

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For the original article by Ho et al., please see SIEC #1997-0233.

In earlier research, a cyclic seasonal variation was found for suicides in England & Wales in the 1960s & 1970s. In the present study, the authors examined the seasonal variation in suicides in England & Wales for the period 1982-1996. They found that the seasonal effect on suicide is greatly diminished, based on the reduced […]

The authors examined the relationship of suicide in the elderly (65 & over) to season & weather & compared it to that in the younger population (10-64 years). They found that whereas younger suicides were associated with season, showing a spring-summer peak, elderly suicides were associated with actual weather, increasing with higher mean daily temperature […]

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The authors studied the seasonal fluctuation of suicide events in Hungary in a 31-year period. A summer maximum & a winter maximum were found in both genders. A second autumn peak was found for men. The authors found that the suicide rate of Hungary fell markedly in 1998, parallel with the fundamental policital-economical-social changes in […]

Published in “The Suicidal Process: Challenges for Treatment and Prevention”

This work compares suicide seasonalities in Zurich, Switzerland, in the 16th-18th centuries, 1901-1920 & 1969-1994. The results indicate shifts of peaks & lows on suicide seasonalities over the centuries, with a smoothing of seasonalities toward the 21st century. The recent period does not show any suicide seasonality at all. The canton of Zurich seems to […]

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The authors compared trends, seasonality, weekly distribution, & methods of youth suicide with suicide in the older population, based on data from all 7942 completed suicides in Slovenia between 1985 & 1997. They found that a significant interaction was demonstrated between the long-term trend & age, but not with sex. Suicide rates were estimated to […]