Suicide rates in the US among residents aged 25 to 64 increased from 1999 to 2016, with the greatest increases in rural counties, particularly in western states, Appalachia and the Ozarks. Increased suicide rates were associated with deprivation (local economies dependent on agriculture and extractive industries), density of gun shops, inadequate health insurance.
77% of the decedents were male. The suicide rate was higher among veterans.
Source: "Contextual Factors Associated with County-level Suicide Rates in the United States, 1999 to 2016", JAMA
http://jamanetwork.com/journals/jama...rticle/2749451