This two-to-one ratio exists regardless of racial , ethnic , or economic
background and has been reported in several countries (Ainsworth , 2000
p .1-2 . Major depression , as defined in DSM-IV-TR , is the most serious
presentation of mood dis in the elderly . The prevalence of major
depression in the elderly has varied in large-scale studies from 1 -2
to 3 .7 , and the...