Abstract B056: Increasing knowledge of colorectal cancer (CRC) risk factors and screening through a community-based education initiative
Authors: Kim Ellen J. , Zhu LIn , Lu Wenyue , Ibrahim Safa , Zhu Steven , Rubio-Torio Nathaly , González Evelyn , Fraser Marilyn A. , Yeh Ming-Chin , Ma Grace X. , Ogunwobi Olorunseun O. , Tan Yin 
Published: January 2023

Abstract
Background: Colorectal cancer (CRC) screening such as colonoscopy and stool test has been shown to be effective in reducing CRC burden, especially in the underprivileged communities. However, CRC awareness and screening uptake remained suboptimal, especially in racial/ethnic minority populations and non-Hispanic whites. Both CRC incidence and mortality rates are highest in non-Hispanic blacks (approximately 20% and 40%, respectively), and CRC screening uptake rates are lower in racial/ethnic minorities relative to non-Hispanic whites (NHWs). The cause for the disparities in incidence and mortality is multifactorial. One important aspect is the suboptimal knowledge and awareness of risk factors. Methods: To increase awareness of CRC prevention and screening, we collaborated with community-based organizations (CBOs) to develop culturally tailored educational materials targeting African/Black Americans (BAs), Asian Americans (AAs), and Hispanic Americans (HAs). The topics included essential CRC and screening knowledge, a healthy diet (Mediterranean diet), and at-home workout routines. Eligible participants from the Greater Philadelphia area and New York City participated in one-time education. Pre- and post-intervention surveys were designed based on the Colorectal Cancer Quiz provided by the Centers for Disease Control and Prevention (CDC) and were administered to assess the immediate impact of the educational sessions. Results: The analysis sample included 413 participants, among which 388 completed the post-survey. One in ten (10.3%) reported a family history of CRC, and a half (50.6%) had never had a colonoscopy. The baseline CRC knowledge score was 9.5 out of 16, indicating a moderately low level of knowledge. Participants scored particularly low on the age of CRC screening initiation, needs for screening even without symptoms, and the impact of physical activity on CRC risk. The knowledge score significantly increased to 10.9 (p &lt; .001) at post-survey, indicating a significant impact of the educational workshops. Conclusion: The findings of our project confirm that the CRC screening rates are low in racial/ethnic minorities compared to the U.S. national rate of 71.6%. Meanwhile, it also confirmed that culturally tailored, community-based educational initiatives can effectively raise knowledge of CRC in medically underserved populations.
Citation Format: Ellen J. Kim, LIn Zhu, Wenyue Lu, Safa Ibrahim, Steven Zhu, Nathaly Rubio-Torio, Evelyn González, Marilyn A. Fraser, Ming-Chin Yeh, Grace X. Ma, Olorunseun O. Ogunwobi, Yin Tan. Increasing knowledge of colorectal cancer (CRC) risk factors and screening through a community-based education initiative [abstract]. In: Proceedings of the 15th AACR Conference on the Science of Cancer Health Disparities in Racial/Ethnic Minorities and the Medically Underserved; 2022 Sep 16-19; Philadelphia, PA. Philadelphia (PA): AACR; Cancer Epidemiol Biomarkers Prev 2022;31(1 Suppl):Abstract nr B056.