This prospective international database is registered at www.clinicaltrials.gov.
This model identified factors predicting chronic pain after ventral hernia repair.
Younger age, females, recurrent hernia repair, and preop pain predict 1-month pain.
Younger age, females, and preop pain predict 6-month and 12-month chronic pain.
This predictive model can aid in preop counseling and early postop management.