There are not good estimates of the prevalence of DMDD, but primary studies have found a rate of 0.8 to 3.3%. Epidemiological studies show that approximately 3.2% of children in the community have chronic problems with irritability and temper, the essential features of DMDD. These problems are probably more common among clinic-referred youths. Parents report that approximately 30% of children hospitalized for psychiatric problems meet diagnostic criteria for DMDD; 15% meet criteria based on the observations of hospital staff.
Disruptive mood dysregulation disorder
Atypical depression
Personality disorder not otherwise specified
Mixed anxiety–depressive disorder
Internalizing disorder
Externalizing disorder
Bipolar I disorder
Transference neurosis