Abstract Introduction: The disproportionate prostate cancer (CaP) burden, which includes high mortality rates, is significantly attributed to the characteristics of the social determinants of the health status of the Black Male population. Designing targeted interventions to address poor health outcomes through a collaborative population-based approach could reduce CaP health disparities. The Community Living Lab (CoLLab) Learning Health System was developed to address ethnically sensitive, targeted approaches that will eliminate CaP health disparities among Black Men. This study assessed demographic factors and Knowledge on prostate cancer screening attitudes and research participation among black men. Method: The collab project employed a social ecological model to design intervention to address barriers to CaP screening and participation in clinical trials. A validated, pretested questionnaire was used to collect information on demographics, CaP knowledge, attitudes, testing, and a history of participation in research and clinical trials. Baseline data were collected from 3 American Legion posts (ALPs). The association between variables was evaluated using the Chi-square test. Results: Participants between 60-69 years were 28.38%, and those aged 40-49 were 12.16%. Most are US-born Black (89.8%), with others identifying as African-born Black (6.76%) and Caribbean-born Black (1.35%). Approximately 43.24% were retired, and 36.49% were working full-time. CaP knowledge was high in 43.9%, moderate in 46.6%, and low in 9.5%. Only 45% of the participants have undergone Prostate-Specific Antigen test, and 24.6% have had a Digital Rectal Examination. Reported past clinical trials and research participation were very low (9.38%). Participants with higher knowledge levels had higher information scores (p .0001), favored various research settings (p = 0.0008), had favorable attitudes towards CaP testing (p .0001), and were more likely to participate in research (p = 0.0117). Work status was found to impact CaP Knowledge (p = 0.0117). Participants with stronger beliefs about prostate cancer may have different attitudes toward testing (p = 0.0444). Age did not impact attitudes toward CaP testing (p = 0.4298). Conclusion: The knowledge of CaP was found to impact the attitudes, testing, and disposition of the participants towards research. The baseline data generated from the clinical study will curate insightful evidence that will create innovative approaches to prostate cancer education among males in Black communities. Citation Format: Opeyemi O. Bolajoko, Quincy A. Wimberly, Daniel W. Lee, Collisa Mahin, Michelle Fudge, Shaina E. Flynn, Arnold J. Merriweather, Trevanne R. Matthews Hew, Monica L. Albertie, Dery Greene, Wayne Ford, Toshiko Moultrie, Floyd B. Willis, Folakemi T. Odedina. Influence of demographic factors and knowledge on prostate cancer screening attitude and research participation among Black men abstract. In: Proceedings of the 18th AACR Conference on the Science of Cancer Health Disparities; 2025 Sep 18-21; Baltimore, MD. Philadelphia (PA): AACR; Cancer Epidemiol Biomarkers Prev 2025;34(9 Suppl):Abstract nr C138.
Bolajoko et al. (Thu,) studied this question.
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