Volume 144, Issue 7, Pages 1410-1418 (June 2013) Features of Adenoma and Colonoscopy Associated With Recurrent Colorectal Neoplasia Based on a Large Community-Based Study  Else–Mariëtte B. van Heijningen, Iris Lansdorp–Vogelaar, Ernst J. Kuipers, Evelien Dekker, Wilco Lesterhuis, Frank Ter Borg, Juda Vecht, Vincent de Jonge, Pieter Spoelstra, Leopold Engels, Clemens J.M. Bolwerk, Robin Timmer, Jan H. Kleibeuker, Jan J. Koornstra, Marjolein van Ballegooijen, Ewout W. Steyerberg  Gastroenterology  Volume 144, Issue 7, Pages 1410-1418 (June 2013) DOI: 10.1053/j.gastro.2013.03.002 Copyright © 2013 AGA Institute Terms and Conditions

Figure 1 The study cohort. Percentages should be interpreted cautiously because they are not based on a formal Kaplan-Meier analysis. Gastroenterology 2013 144, 1410-1418DOI: (10.1053/j.gastro.2013.03.002) Copyright © 2013 AGA Institute Terms and Conditions

Figure 2 Flow chart of findings (and median interval) of first and subsequent (for patients without adenomas at previous examinations) surveillance examinations. AA includes adenomas with one or more of the following characteristics; villous histology, HGD, and size ≥10 mm, including CRC. NAA includes adenomas <10 mm, with tubular or tubulovillous histology and low-grade dysplasia. Red blocks add up to 203 patient records with AA at surveillance (in 203 patients). Orange blocks add up to 954 patient records with NAA at surveillance (in 954 patients). Green blocks add up to 3298 patient records with no adenoma at surveillance (in 1833 patients). aAdds up to the number of patients with no adenoma detected at surveillance. FU, follow-up endoscopy. Gastroenterology 2013 144, 1410-1418DOI: (10.1053/j.gastro.2013.03.002) Copyright © 2013 AGA Institute Terms and Conditions