Globally, in 2015 about 8.9 million cases of pancreatitis occurred. This resulted in 132,700 deaths, up from 83,000 deaths in 1990. Acute pancreatitis occurs in about 30 per 100,000 people a year. New cases of chronic pancreatitis develop in about 8 per 100,000 people a year and currently affect about 50 per 100,000 people in the United States. It is more common in men than women. Often chronic pancreatitis starts between the ages of 30 and 40 while it is rare in children. Acute pancreatitis was first described on autopsy in 1882 while chronic pancreatitis was first described in 1946.. What are two  types of pancreatitis?