The goal of this observational study is to learn about post-acute pancreatitis diabetes mellitus (PPDM-A). The main questions it aims to answer are:

1. What are the clinical characteristics of PPDM-A?
2. What are the related factors for PPDM-A?

All patients with acute pancreatitis have been given standardized treatment for the condition.

The researchers will compare the PPDM-A group with the non-PPDM-A group to find the risk factors for PPDM-A.

Investigators retrospectively collected data from patients with acute pancreatitis (AP) in participating centers between January 2013 and June 2024.

Inclusion Criteria:

1. Patients with pancreatitis attending participating centers since January 2013 (patients with clinically reported AP (ICD-10:K85 or related diagnosis));
2. Age between 18 and 80 years;
3. Patients have undergone glucose metabolic tests at least 1 month after discharge from hospital.

Exclusion Criteria:

1. Patients with a history of diabetes mellitus prior to the AP attack;
2. Patients who underwent pancreatic surgery;
3. Patients with hereditary pancreatitis and autoimmune pancreatitis;
4. Patients with missing data regarding age or gender.

We collected data from patients with acute pancreatitis (AP) in participating centers between January 2013 and June 2024.