Translation and Validation of Chinese COMPAT-SF

The goal of this observational study is to translate, adapt, and test the reliability of a Chinese version of the Comprehensive Pain Assessment Tool Short Form (COMPAT-SF) for people with chronic pancreatitis. The study will answer these questions: * Does the Chinese COMPAT-SF work well to measure pain in people with chronic pancreatitis? * Is the Chinese COMPAT-SF accurate and reliable over time? Participants will: * Complete the Chinese COMPAT-SF questionnaire two times, with a 2-week gap. * Answer additional pain-related questions using the Brief Pain Inventory (BPI) and the Izbicki Pain Score. * Participate in a follow-up to check if the questionnaire gives consistent results over time. This study will help make sure that doctors in China have a useful and reliable tool to measure pain in people with chronic pancreatitis.