Firearms and suicide: the American experience, 1926-1996

Area of Science:

• Public Health
• Epidemiology
• Sociology

Background:

• Suicide rates in American men have historically exceeded those in women.
• A prevailing hypothesis suggests this disparity is due to men's selection of more lethal suicide methods.

Purpose of the Study:

• To test the hypothesis that method lethality explains the higher male suicide rates compared to female rates.
• To examine the relationship between firearm use and suicide rates in American men and women over time.

Main Methods:

• Adjusted male suicide rates to equalize the distribution of highly lethal method usage between sexes.
• Analyzed temporal trends in suicide rates and firearm usage for both men and women from 1926-1996.
• Assessed the impact of changes in firearm suicide rates on overall suicide rates.

Main Results:

• Adjusted male suicide rates remained higher than total female rates across all analyzed periods.
• Increased firearm use in women was not correlated with rising female suicide rates.
• Increased firearm use in men showed a positive relationship with male suicide rates, primarily in recent decades.
• The impact of changes in male firearm suicide rates on total male suicide rates was often weak or nonexistent.
• The impact of changes in male firearm suicide rates on total female suicide rates was generally trivial.

Conclusions:

• Method lethality alone does not account for the higher suicide rates observed in American men.
• Firearm usage trends have a more significant, though complex, relationship with male suicide rates than with female rates.
• Further research is needed to understand the multifactorial nature of gender disparities in suicide rates.