Abstract
67 Background: in Mexico, Colorectal Cancer (CRC) is a leading cause of cancer death, yet population-based screening programs are lacking. In our center, a cohort was created to validate a risk calculator to detect advanced colorectal neoplasia, and to understand barriers to implement a CRC screening program. We aimed to determine frequency and reasons associated to rejection of CRC screening in our population. Methods: from August 2019 to March 2020 (early close owing to COVID-19 pandemic) asymptomatic individuals between 50 and 75 years-old with standard-risk for CRC, without previous screening for CRC, from the outpatient internal medicine clinic at a tertiary care center in Mexico City, received standardized information on the importance of CRC screening and were invited to perform both Fecal Immunochemical Test and a screening colonoscopy within a clinical study at no cost. Individuals who rejected participation were given a 10-item questionnaire to select reasons for refusal, as many items as applied. Here we present two groups: 1) individuals who refused to receive information and to perform screening studies, and 2) individuals who refused to participate after receiving information. Results: 162 patients were invited to participate, 77 (47%) refused: 48 rejected immediately (group 1) and provided 51 reasons, and 29 declined after having received standardized information about CRC screening (group 2) and provided 30 reasons. Demographics for 77 patients were: 54 (70.1%) women, median age 66 (IQR 58-71) years. Main reasons for rejection in both groups were: “I do not have time” in 24 (29.6%) times, “I am not interested” in 23 (28.4%) times, and “I am scared” in 14 (17.3%) times (Table). Conclusions: in our cohort, we identified that nearly half of the population invited to participate in a CRC screening program refused. Main reasons were lack of time, lack of interest and fear. This may translate poor understanding on the importance of measures to prevent CRC, and absence of education programs to recall its importance. In order to increment participation in CRC screening, education and awareness campaigns should be implemented.[Table: see text]
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