The mortality rate for Autoimmune Hepatitis (AIH) varies depending on the severity of the disease, the patient's response to treatment, and the presence of any complications. If managed properly, the mortality rate for AIH is low, with some studies reporting a 5-year survival rate of around 95%. However, if left untreated, AIH can become severe and lead to complications such as cirrhosis, which can increase the mortality rate to as high as 15-20%. Additionally, the mortality rate is higher in patients who have not responded to treatment and those who have developed complications.
Overall, the mortality rate for AIH can vary depending on the severity of the disease and the presence of any complications. If managed properly, the mortality rate is low and patients can have a good prognosis. However, if left untreated, the mortality rate can increase significantly.