1. Effect of a Time-Dependent Colonoscopic Withdrawal Protocol on Adenoma Detection During Screening Colonoscopy 
Robert L. Barclay, Joseph J. Vicari, Roger L. Greenlaw 
Clinical Gastroenterology and Hepatology 
Volume 6, Issue 10, Pages (October 2008)
DOI: /j.cgh
Copyright © 2008 AGA Institute Terms and Conditions

2. Figure 1
Enrollment of subjects. Some subjects had more than one indication for a diagnostic examination.
Clinical Gastroenterology and Hepatology 2008 6, DOI: ( /j.cgh )
Copyright © 2008 AGA Institute Terms and Conditions

3. Figure 2
Physician adenoma detection rates versus colonoscopic withdrawal times in examinations without polyp removal. Baseline: rs = 0.90; P < .001; postintervention: rs = 0.76; P = .004.
Clinical Gastroenterology and Hepatology 2008 6, DOI: ( /j.cgh )
Copyright © 2008 AGA Institute Terms and Conditions

4. Figure 3
Postintervention neoplasia detection rates versus withdrawal time in examinations without polyp removal. All neoplasia: rs = 0.64; P = .03; Advanced neoplasia: rs = 0.53; P = .07.
Clinical Gastroenterology and Hepatology 2008 6, DOI: ( /j.cgh )
Copyright © 2008 AGA Institute Terms and Conditions

5. Figure 4
Postintervention neoplasia detection rates versus percentage adherence to 8-minute withdrawal times in examinations without polyp removal. All neoplasia: rs = 0.57; P = .05; Advanced neoplasia: rs = 0.52; P = .08.
Clinical Gastroenterology and Hepatology 2008 6, DOI: ( /j.cgh )
Copyright © 2008 AGA Institute Terms and Conditions