Mental health disorders are associated with high rates of attrition in the military which produces a significant economic impact on military organizations. A Canadian study of 8,441 soldiers looked into this problem and was the first national epidemiological survey to examine the mental health of active soldiers over a 12-month period. The study found that within the year 1,220 of the soldiers met the criteria for at least one mental disorder with the most common problems being depression, alcohol dependence and social phobia. More than half the soldiers with a mental-health problem did not use any of the mental health services available to them.
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