Abstract

Social influence and self-efficacy are positively associated with colorectal cancer screening adherence among African Americans: Implications for advocacy and community partnerships

Grace Mabiala-Maye, MD, MPH1, Kaeli Samson, MPH, MA1, Christine Le, BA1, Keyonna King, DrPH1, Tzeyu Michaud, PhD1, Hongying Dai, Ph.D.1, Paul Estabrooks, PhD2 and Jungyoon Kim, PhD1
(1)University of Nebraska Medical Center, Omaha, NE, (2)University of Utah College of Health, Salt Lake City, UT

APHA 2025 Annual Meeting and Expo

Background: Colorectal cancer (CRC) is a leading cause of cancer-related mortality among African Americans. Understanding how health beliefs affect health behaviors is essential to improving CRC screening adherence.

Methods: This observational study examined the relationship between health beliefs and CRC screening adherence within the context of a community-based CRC screening program BEAT Cancer (Black-Equity-Access and-Treatment for-Cancer). The primary outcome was the fecal immunochemical test (FIT) return rate. Independent variables included socio-demographics (age, gender, income), healthcare access (insurance, primary care access), health behavior (smoking status), and health beliefs related to CRC screening (perceived benefits, barriers, susceptibility, self-efficacy, and social influence). Multivariable logistic regression with backward selection was used to generate adjusted odds ratios (AORs) between health beliefs and screening adherence (FIT return).

Results: The study included 471 African American participants aged 45-75 who received a FIT kit between 10/1/2023 and 2/1/2025. The overall FIT return rate was 34.8%. Bivariate analyses showed that participants who returned their FIT kits were older (59.0 vs. 57.0 years; p=0.01), more likely to be non-smokers (73.0% vs. 62.4%; p=0.02), and had higher beliefs in CRC screening benefits (3.6 vs. 3.5; p=0.006), self-efficacy (3.3 vs. 3.2; p=0.02), and social influence (3.1 vs. 2.9; p=0.003). After adjusting for age and smoking status, social influence (AOR: 1.60; CI: 1.11-2.32) and self-efficacy (AOR: 1.53; CI: 1.01-2.32) remained significantly associated with FIT return.

Conclusion: Self-efficacy and social influence were positively associated with CRC screening adherence, highlighting the potential of community partnerships and advocacy efforts to improve screening rates among African Americans.

Advocacy for health and health education Assessment of individual and community needs for health education Chronic disease management and prevention Diversity and culture Public health or related research Social and behavioral sciences