A study based on over 9,000 u. s. residents found that the most prevalent disorder was major depressive disorder
Depression (major depression) is a common and serious condition that negatively affects how you feel, think, and behave. Fortunately, it is also treatable. Depression causes feelings of sadness and loss of interest in activities that were once enjoyed.
Depression is a mood disorder that causes persistent sadness and loss of interest. Also known as major depressive disorder or clinical depression, it affects emotions, thoughts, and behaviors and can lead to a variety of emotional and physical problems.
According to DSM-IV, DD-NOS includes "any depressive disorder that does not meet the criteria for a specified disorder." In DSM-5, it is called depressive disorder unspecified. Examples of disorders in this category are those sometimes called mild depressive disorders and short recurrent depression
Learn more about depression here
https://brainly.com/question/21711771
#SPJ4