Yes.

A KFF analysis of CDC data divided the states equally into three groups — those with the most, moderate, and the fewest firearm law provisions — and found that states with the fewest gun law provisions had twice the gun suicide rate of states with the most, at a rate of 10.8 per 100,000 people.
States with the most, moderate, and the least firearm law provisions had averages of 61, 19, and six provisions, respectively. Oklahoma has eight provisions. The analysis found that the variation in state-level suicide rates is primarily driven by rates of firearm suicide.
Another CDC analysis also showed that states with lower gun ownership rates and stronger gun laws have the lowest suicide rates.
Studies have concluded that where firearm ownership levels are higher, a disproportionately large number of people die from suicide, even when accounting for psychological risk factors and underlying suicidal behavior.
Oklahoma has a household gun ownership rate of 54.7%
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Sources
- KFF Do States with Easier Access to Guns have More Suicide Deaths by Firearm?
- Violence Policy Center States with Lower Gun Ownership and Stronger Gun Laws Have Lowest Suicide Rates
- National Library of Medicine Firearms and suicide in the United States: is risk independent of underlying suicidal behavior?
- National Library of Medicine Household firearm ownership and suicide rates in the United States
- National Library of Medicine Household firearm ownership and rates of suicide across the 50 United States
- Violence Policy Center State Overall Suicide Rates, Ranked by Rate, 2022



