“The annual cancer risk for patients with nondysplastic Barrett’s esophagus is 0.12%–0.4%, with a significant increase in risk if dysplasia is present. Surveillance with endoscopy every 3 years is recommended for patients with Barrett’s esophagus without dysplasia.” ABFM
Ref: Rustgi AK, El-Serag HB: Esophageal carcinoma. N Engl J Med 2014;371(26):2499-2509.