Although less prevalent than other forms of hepatitis, researchers are still uncertain how common autoimmune hepatitis is in the population. The National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) point out research from northern Europe that shows an estimated 10 to 24 out of every 100,000 people have autoimmune hepatitis.
The disease may be a lifelong one. However, most people can manage the symptoms, bring the condition into remission, and slow liver damage.