Restrictions of access to pesticides in suicide prevention
Intentional pesticide ingestion is a common method of suicide, accounting for up to one-fifth of all suicides worldwide. The importance of intentional ingestion of pesticides was initially recognized in Asia and the Western Pacific but it is also a problem in Latin America, the Eastern Mediterranean, and in Africa. Organophosphate pesticides are responsible for a large proportion of pesticide self-poisonings and for the majority of deaths from pesticide ingestion. Limiting access to pesticides could substantially reduce the global burden of mortality due to suicide. Despite initial enthusiasm for restricting access to pesticides by promoting safe storage of these compounds, the definitive study on this method in Sri Lanka did not find a significant reduction in suicide rates. There is, however, growing evidence that national or regional bans on high toxicity pesticides lead to falls in pesticide-ingestion suicide rates, and overall, suicide rates without substantial substitution of other methods of suicide.