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Search form. US methods of suicide. In the USA, there are three particularly popular methods of successful suicide: firearms, suffocation/hanging (likely to be largely hanging, but will also include carbon monoxide poisoning) and poisoning (commonly by drugs).
8 And they have access to the most common means for suicide: drugs and firearms. About one-half of U.S. suicides involve firearms, followed by suffocation, especially hanging, at 24 percent and poisoning at 18 percent (including drug overdoses).n the United States and in many other countries, the suicide rate increases with age (see figure). U.S. Suicide Rate by Age, 1999 and 2007. Source: WHO, World Report on Violence and Health (Geneva: WHO, 2002).