Fig. 1From: Incidence of neoplasias and effectiveness of postoperative surveillance endoscopy for patients with ulcerative colitis: comparison of ileorectal anastomosis and ileal pouch-anal anastomosisCumulative incidence of neoplasia by surgical technique. Cumulative incidence calculated using the Kaplan-Meier method; p value calculated using the log-rank test. IRA ileorectal anastomosis, IPAA ileal pouch-anal anastomosisBack to article page