This prospective observational study was conducted in patients with painful chronic pancreatitis who underwent P-ESWL. Patients aged over 65 years were included in the geriatric group; patients aged under 65 years who underwent P-ESWL in the same period were assigned to the control group. For investigation of long-term follow-up, the geriatric group were matched with patients from the control group in a 1:1 ratio. The primary outcomes were P-ESWL complications and pain relief. The secondary outcomes included: stone clearance, physical and mental health, quality of life score, and body weight.