(WASHINGTON) -- Since the start of the Iraq War in 2003, the rate of suicide among U.S. Army soldiers has soared, according to a new study from the U.S. Army Public Health Command.
The study, an analysis of data from the Army Behavioral Health Integrated Data Environment, shows a striking 80 percent increase in suicides among Army personnel between 2004 and 2008. The rise parallels increasing rates of depression, anxiety and other mental health conditions in soldiers, the study said.
The high number of suicides are "unprecedented in over 30 years of U.S. Army records," according to the authors of the study, which was published Wednesday in the journal Injury Prevention. Based on the data and the timing of the increase in suicide rates, the authors calculated that about 40 percent of the Army's suicides in 2008 could be associated with the U.S. military escalation in Iraq.
"This study does not show that U.S. military operations in Iraq and Afghanistan cause suicide," said Dr. Michelle Chervak, one of the study's authors and a senior epidemiologist at the U.S. Army Public Health Command. "This study does suggest that an Army engaged in prolonged combat operations is a population under stress, and that mental health conditions and suicide can be expected to increase under these circumstances."
From 1977 to 2003, suicide rates in the Army closely matched the rates of suicide in the civilian population, and were even on a downward trend. But after 2004, the rates began to climb fast, outpacing the rates in civilians by 2008.
In 2007 and 2008 alone, 255 active duty soldiers committed suicide. The vast majority of the suicides since 2004 were by men; and 69 percent had seen active combat duty. Nearly half were between ages 18 and 24. And 54 percent of those who committed suicide were from among the lower ranks of enlisted personnel.
The study found that suicide rates were higher among soldiers who had been diagnosed with a mental illness in the year before their death.
Soldiers who had been diagnosed with major depression were more than 11 times as likely to commit suicide, and suicide was 10 times more likely among those with anxiety. More than 25 percent of the soldiers who took their lives had been diagnosed with adjustment disorder, a term for the immediate emotional fallout from proximity to stressful events.
The association between mental health woes and the risk of suicide is well known to mental health professionals, but Chervak said the purpose of the study was to validate mental health diagnoses as a major risk factor for the increasing number of suicides in the Army.
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