Association of geomagnetic disturbances and suicides in Japan, 1999–2010
書誌事項
- 公開日
- 2013-09-05
- 資源種別
- journal article
- 権利情報
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- http://www.springer.com/tdm
- DOI
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- 10.1007/s12199-013-0355-5
- 公開者
- Springer Science and Business Media LLC
この論文をさがす
説明
Previous studies have shown a positive relationship between geomagnetic disturbances and an increased incidence of suicide. The Japanese suicide rate is the ninth highest in the world, but there have been no reports examining the relationship between geomagnetic disturbance and the number of suicides, and, therefore, this paper examines this relationship.The number of Japanese suicides per month from January 1999 to December 2010 was obtained, and it was found that a total of 262,596 males and 102,539 females committed suicide during this period. To adjust the other factors which affect the number of suicides, a multiple linear regression analysis with backward elimination was carried out, with the monthly number of suicides as the response variable and the monthly mean K index value, monthly mean number of sunspots, monthly mean unemployment rate, proportion of elderly people (%), monthly mean air pressure (hPa), monthly mean air temperature (°C), monthly mean humidity (%), and monthly mean day length (h) as the explanatory variables.In the multiple linear regression analysis for males, the monthly mean K index value was associated with the monthly number of suicides, but in females, the monthly mean K index value was not associated with the monthly number of suicides.In this study, we generated a hypothesis that geomagnetic disturbances may trigger male suicides.
収録刊行物
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- Environmental Health and Preventive Medicine
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Environmental Health and Preventive Medicine 19 (1), 64-71, 2013-09-05
Springer Science and Business Media LLC