<P> Major depressive disorder affected approximately 216 million people ( 3 % of the world 's population ) in 2015 . The percentage of people who are affected at one point in their life varies from 7 % in Japan to 21 % in France . Lifetime rates are higher in the developed world ( 15 % ) compared to the developing world ( 11 % ) . It causes the second most years lived with disability after low back pain . The most common time of onset is in a person in their 20s and 30s . Females are affected about twice as often as males . The American Psychiatric Association added `` major depressive disorder '' to the Diagnostic and Statistical Manual of Mental Disorders ( DSM - III ) in 1980 . It was a split of the previous depressive neurosis in the DSM - II which also encompassed the conditions now known as dysthymia and adjustment disorder with depressed mood . Those currently or previously affected may be stigmatized . </P>
<P> Major depressive disorder affected approximately 216 million people ( 3 % of the world 's population ) in 2015 . The percentage of people who are affected at one point in their life varies from 7 % in Japan to 21 % in France . Lifetime rates are higher in the developed world ( 15 % ) compared to the developing world ( 11 % ) . It causes the second most years lived with disability after low back pain . The most common time of onset is in a person in their 20s and 30s . Females are affected about twice as often as males . The American Psychiatric Association added `` major depressive disorder '' to the Diagnostic and Statistical Manual of Mental Disorders ( DSM - III ) in 1980 . It was a split of the previous depressive neurosis in the DSM - II which also encompassed the conditions now known as dysthymia and adjustment disorder with depressed mood . Those currently or previously affected may be stigmatized . </P>
when was major depressive disorder added to the dsm
when was major depressive disorder added to the dsm
1980
1980