Key statistics about dissociative identity disorder, or DID, include that the typical individual afflicted with DID has between two and four personalities at the time of their initial diagnosis and as many as 13 to 15 personalities over the course of their treatment, according to WebMD. Some patients display as many as 100 personalities, with personalities surfacing as they are triggered by life events and other environmental stimuli.
Women receive DID diagnoses at nine times the rate of men, with researchers believing that the disorder often stems from serious past abuse, notes MedicineNet.com. Trauma during an individual's formative years, at and around the age of six, such as the loss of a parent or sexual assault is particularly impactful, explains Medical Daily. Including borderline personality disorder and schizophrenia, over 9 percent of all American adults ultimately receive a dissociative disorder diagnosis at some point.
Individuals most often receive their diagnoses between five and ten years after their symptoms first arise, according to StudentPulse. However, many physicians believe DID is over-diagnosed, with 37 percent feeling that therapists are able to create DID in patients. Individuals are more at risk for DID if their first-hand relatives suffer from it. Moreover, individuals also suffering from other comorbid disorders, which include drug addictions, eating disorders, anxiety problems, psychosis and OCD, are especially vulnerable. Moreover, patients with comorbid disorders generally face worse prognoses.