RT Journal Article SR Electronic T1 A Comparison of Unsedated Colonoscopy and Flexible Sigmoidoscopy in the Family Medicine Setting: An LA Net Study JF The Journal of the American Board of Family Medicine JO J Am Board Fam Med FD American Board of Family Medicine SP 444 OP 450 DO 10.3122/jabfm.2007.05.060175 VO 20 IS 5 A1 Knox, Lyndee A1 Hahn, Ricardo G. A1 Lane, Christianne YR 2007 UL http://www.jabfm.org/content/20/5/444.abstract AB Background: Colonoscopy visualizes more of the colon than flexible sigmoidoscopy. This study compares the outcomes of an unsedated modified colon endoscopy (MCE) with flexible sigmoidoscopy (FS) in family medicine practice.Methods: We conducted a retrospective chart review of existing clinical data to compare outcomes for 48 patients undergoing MCE and 35 patients undergoing FS at 3 family medicine practices in Los Angeles. Outcomes of interest included completion rates, number of complications, depth reached, anatomic site visualized, and information about the number and nature of clinical findings.Results: No significant differences were found between MCE and FS regarding completion rates (83.3% vs 75%, respectively). Expected statistically significant differences were found between the 2 procedures in the anatomic site visualized (P < .01) and depth reached (P < .01). Clinical pathologies were identified in 58% of MCE patients and 37% of FS patients. Four adenocarcinomas were identified in the MCE group in the proximal region of the colon that could not have been detected by FS.Conclusions: Findings from this study suggest that MCE can be an acceptable alternative to FS in office settings for colorectal cancer screening.