Clinical outcome in relation to timing of surgery in chronic pancreatitis: A nomogram to predict pain relief

Objective: To evaluate the effect of timing of surgery on the long-term clinical outcome of surgery in chronic pancreatitis (CP). Design: Cohort study with long-term follow-up. Setting: Five specialized academic centers. Patients: Patients with CP treated surgically for pain. Interventions: Pancreatic resection and drainage p