prevalence

Reported prevalence (frequency) varies from one study to another. Most studies report prevalence of 1 to 4% of the population. Several studies uncovered previously undiagnosed dissociative identity disorder in 3 to 4% of acute psychiatric inpatients. With increased awareness amongst mental health professionals, the reported prevalence is rising.

DID is diagnosed four times more frequently in women, probably because females seek therapy. Males with DID are more likely to commit violent crimes and to be incarcerated within the penal system.