Topic summary
Method of suicide

Extracted from the Wikipedia article Suicide methods.
Firearm
In the United States, suicide by firearm is the most lethal method of suicide, resulting in a fatality 90% of the time, and is thus the leading cause of death by suicide as of 2017. Worldwide, firearm prevalence in suicides varies widely, depending on the acceptance and availability of firearms in a culture. The use of firearms in suicides ranges from less than 10% in Australia, to 50.5% in the U.S., where it is the most common method of suicide.