The day of the week does not affect the adenoma detection rate.

BACKGROUND: The role of operator fatigue on adenoma detection rate (ADR) is still controversial. AIMS: The purpose of this study was to determine if fatigue towards the end of the week affects the ADR. METHODS: A retrospective chart review of consecutive colonoscopies was done at a tertiary care teaching institution. Patients 45 years of age or older undergoing screening or surveillance colonoscopy from June 2007 to August 2010 were included in the study. RESULTS: A total of 3,085 patients were included in the study, with an overall 31 % ADR. ADR was between 31 and 32 % throughout the week, with no statistically significant variation (p = 0.8697). The total number of adenomas and advanced adenomas was also similar throughout the week (p = 0.8, p = 0.59, respectively). CONCLUSIONS: ADR is not influenced by the day of the week in which a colonoscopy is performed.

Comparison of adenoma detection rate in Hispanics and whites undergoing first screening colonoscopy: a retrospective chart review.

BACKGROUND: Current guidelines recommend screening colonoscopy beginning at age 50 in the average-risk population. Race has been shown to influence the risk of colorectal cancer, thus leading to the recommendation of initiating screening in blacks at the age of 45. Few data exist on the prevalence of colon polyps among U.S. Hispanics. OBJECTIVES: To compare the adenoma detection rate (ADR) between Hispanics and whites undergoing a first screening colonoscopy at our referral center. DESIGN: Observational study. SETTING: Single endoscopy unit, tertiary care teaching hospital. PATIENTS: Patients 50 years of age or older undergoing their first screening colonoscopy whose race was determined as white or Hispanic from June 2007 to August 2010. MAIN OUTCOME MEASUREMENT: ADR by race. RESULTS: There was no statistically significant difference in the ADR among Hispanics and whites (45% and 48%, respectively; P = .2). No difference was found when comparing the ADR in Hispanic and white males (50% and 55%, respectively; P = .2), Hispanic and white females (40% in both groups), or in the 50- to 59-year-old subgroup (42% in Hispanics, 45% in whites, P = .4). There was no difference in the prevalence of advanced adenomas (3% in Hispanics, 4% in whites, P = .3). The prevalence of proximal polyps in Hispanics and whites was similar (18% and 19%, respectively, P = .8). LIMITATIONS: Retrospective design, self-identification of race/ethnicity, underrepresentation of certain Hispanic subgroups. CONCLUSIONS: We found a similar ADR among Hispanics and whites undergoing their first screening colonoscopy. These findings have important implications for colorectal cancer screening recommendations, suggesting that the current guidelines are appropriate for Hispanics.